Publications in International Conference Proceedings

C1. Katsikadelis J.T. and Sapountzakis E.J. (1986) “Numerical Evaluation of the Green Function for the Laplace Equation with Applications to Linear and Non-Linear Potential Problems by the Boundary Element Method”, Proc. of 3rd Interanational Conference on Computational Methods and Experimental Measurements, Porto Carras, Greece, Springer Verlag, Berlin, pp. 877-890.

C2. Katsikadelis J.T. and Sapountzakis E.J. (1987) “Numerical Evaluation of the Green Function for the Biharmonic Equation Using BEM with Applications to Static and Dynamic Analysis of Plates”, Proc. of 9th International Conference on Boundary Element Methods in Engineering, University of Stuttgart, Springer Verlag, Berlin, Vol. 2, pp. 51-67.

C3. Katsikadelis J.T. and Sapountzakis E.J. (1988) “A New Method for the Evaluation of Plates on Elastic Ground”, Proc. of the First Hellenic Conference of Geotechnical Mechanics, Athens, Greece, Volume 2, pp. 197-202.

C4. Sapountzakis E.J. and Katsikadelis J.T. (1988) “Unilaterally Supported Plates on Elastic Foundation by the Boundary Element Method”, Proc. of the XVIIth International Congress of Theoretical and Applied Mechanics, Grenoble, France, pp. 165-166.

C5. Katsikadelis J.T., Sapountzakis E.J. and Zorba E.G. (1988) “A BEM Approach to Static and Dynamic Analysis of Plates with Internal Supports”, Proc. of the 10th International Conference on Boundary Element Methods in Engineering, Southampton, UK, Springer Verlag, Berlin, pp. 431-444.

C6. Sapountzakis E.J. and Katsikadelis J.T. (1989) “A Boundary Element Solution for Plates with Variable Thickness”, Proc. of the 2nd National Congress of HSTAM, Athens, Greece, Vol.1, pp.212-226.

C7. Katsikadelis J.T. and Sapountzakis E.J. (1989) “A BEM Solution to Dynamic Analysis of Plates with Variable Thickness”, Proc. of the 11th International Conference on Boundary Element Methods in Engineering, Cambridge, Massachussets, Springer Verlag, Berlin, Vol. 3, pp. 285-302.

C8. Katsikadelis J.T., Yotis A.J. and Sapountzakis E.J. (1990) “An Integral Equation Approach to the Vibration Problem of Thick Elastic Plates”, Proc. of the European Conference on Structural Dynamics, EURODYN ’90, pp.869-875, Bochum, Germany.

C9. Katsikadelis J.T. and Sapountzakis E.J. (1991) “Influence of the Inplane Boundary Conditions to the Buckling Load of Plate Panels”, Proc. of the 1st National Conference on Steel Structures, Athens, Greece, pp.163-176.

C10.    Katsikadelis J.T. and Sapountzakis E.J. (1991) “A BEM Solution to the Vibration Problem of Plates Under Inplane Forces with Application to Stability of Plates”, Proc. of the Polish – German – Greek Symposium on Dynamics and Stability of Continua, Pultusk, Poland.

C11.    Katsikadelis J.T. and Sapountzakis E.J. (1992) “A BEM Solution to Dynamic Analysis of Plates Subjected to Inplane Forces”, Proc. of the 1st European Joint Conference on Engineering Systems Design and Analysis, Istanbul, Turkey, ASME, Vol.5, pp. 41-48.

C12.    Sapountzakis E.J. and Katsikadelis J.T. (1998) “Analysis of Plates Reinforced with Beams”, Proc. of the 5^th National Congress on Mechanics, Ioannina, Greece, August 27-30, Vol.1, pp.92-100.

C13.    Sapountzakis E.J. and Katsikadelis J.T. (1998) “Dynamic Analysis of Plates Reinforced with Beams”, Proc. of the Eleventh European Conference on Earthquake Engineering, CNIT, Paris, September 6-11, Balkema, Rotterdam, pp.306.

C14.    Sapountzakis E.J. and Katsikadelis J.T. (1998) “Static and Dynamic Analysis of Valleybridge Deck Slabs Reinforced with Beams”, Proc. of the 2^nd Interscientific Conference “Technology, Civilization and Decentralisation”, Μetsovo, Greece, June 3-6, pp.735-757.

C15.    Sapountzakis E.J. and Katsikadelis J.T. (1998) “Analysis of Ribbed Plate Systems Under Transverse and Inplane Loading”, Proc. of the 3^rd National Conference on Steel Structures, Thessaloniki, Greece, October 30-31, pp.76-83.

C16.    Sapountzakis E.J. and Katsikadelis J.T. (1999) “Influence of the Inplane Boundary Conditions on the Buckling Load of Ribbed Plates”, Proc. of the 2^nd European Conference on Steel Structures, Praha, Czech Republic, May 26-29, Vol.1, pp.71-74.

C17.    Sapountzakis E.J. and Katsikadelis J.T. (1999) “Evaluation of Interface Forces in Composite Steel – Concrete Structures”, Proc. of the 3^rd National Congress on Computational Mechanics, Volos, Greece, June 24 – 26, pp.199-206.

C18.    Sapountzakis E.J. and Katsikadelis J.T. (1999) “Creep and Shrinkage Effect on Reinforced Concrete Slab-and-Beam Structures”, Proc. of the International Congress “Creating with Concrete”, Dundee, Scotland, September 6-10, Vol. Innovation in Concrete Structures, pp.531-542.

C19.    Sapountzakis E.J. and Katsikadelis J.T. (1999) “Creep and Shrinkage Effect on the Dynamic Analysis of Reinforced Concrete Slab-and-Beam Structures”, Proc. of the European Conference on Computational Mechanics, Münich, Germany, August 31 – September 3, pp.370.

C20.    Sapountzakis E.J. (2000) “Nonuniform Torsion of Composite Bars of Materials in Contact by the Boundary Element Method”, Proc. of the Fourth International Colloquium on Computation of Shell and Spatial Structures, Chania, Crete, Greece, June 5-7, pp.14.

C21.    Sapountzakis E.J. and Katsikadelis J.T. (2000) “Analysis of Prestressed Concrete Slab – and – Beam Structures”, Proc. of the Fourth International Colloquium on Computation of Shell and Spatial Structures, Chania, Crete, Greece, June 5-7, pp.410.

C22.    Sapountzakis E.J. (2000) “Bridge Deck Structures in Nonuniform Torsion”, Proc. of the 16^th Congress of IABSE Structural Engineering for Meeting Urban Transportation Challenges, Lucerne, Switzerland, September 18-21, pp.150.

C23.    Sapountzakis E.J. (2001), “Creep and Shrinkage Effect of Valleybridge Deck Slabs Reinforced with Prestressed Concrete Beams – Application in Valleybridges of Metsovo”, Proc. of 3^rd Interscientific Interuniversity Conference “The Integrated Development in Highland Regions – Theory and Practice”, Μetsovo, Greece, June 7-10, pp.854-874.

C24.    Sapountzakis E.J. and Mokos V.G., (2001) “Nonuniform Torsion of Composite Bars by the Boundary Element Method”, Proc. of the 2^nd European Conference on Computational Mechaniccs, Cracow, Poland, June 26-29, pp.188.

C25.    Katsikadelis J.T. and Sapountzakis E.J. (2001) “A Realistic Estimation of the Effective Breadth of Ribbed Plates”, Proc. of the 6^th National Congress on Mechanics, Thessaloniki, Greece, July 19-21, Volume I, pp.222-227.

C26.    Sapountzakis E.J. and Katsikadelis J.T. (2001) “Optimised Model of Slab and Beam Structures”, Proc. of the 1^st ALBERT CAQUOT International Conference, Paris-CNIT, France, October 3-5, pp.55-56.

C27.    Sapountzakis E.J. and Exarchopoulos D.N. (2001) “Simplified Nonlinear Seismic Analysis of Bridges”, Proc. of the 2^nd National Congress on Earthquake Engineering and Τechnical Seismology, Thessaloniki, Greece, November 28-30, pp.607-616.

C28.    Sapountzakis E.J. and Katsikadelis J.T. (2002) “Interface Forces in Composite Steel-Concrete Structures with Deformable Connection” Proc. of the 4^th National Congress on Steel Structures, Patras, Greece, May 24-25, pp.412-420.

C29.    Sapountzakis E.J. and Mokos V.G. (2002) “Warping Shear Stresses in Nonuniform Torsion of Bars” Proc. of the 4^th GRACM Congress on Computational Mechanis, Patras, Greece, June 27-29, pp.93.

C30.    Sapountzakis E.J. and Mokos V.G. (2002) “Warping Shear Stresses in Nonuniform Torsion of Composite Bars” Proc. of the 5^th World Cogress on Computational Mechanics, Austria, Vienna, July 7-12, pp.II-49.

C31.    Sapountzakis E.J. and Exarchopoulos D.N. (2002) “A Displacement Method Approach to Define the Behaviour Factor in Bridge Seismic Analysis” Proc. of the 12^th European Conference on Earthquake Engineering, U.K., London, September 9-13.

C32.    Sapountzakis E.J. and Mokos V.G. (2003) “Warping Shear Stresses in Nonuniform Torsion in Bridge Decks of Materials in Contact by BEM” Proc. of the 2^nd MIT Conference on Computational Fluid and Solid Mechanics, Massachusetts Institute of Technology, Cambridge, USA, June 17-20, Vol.1, pp.623-627.

C33.    Sapountzakis E.J. and Mokos V.G. (2003) “Nonuniform Torsion of Bars of Variable Thickness” Proc. of the Second International Structural Engineering and Construction Conference, Rome, Italy, September 23-26, Balkema Publishers, Vol.1, pp.583-588.

C34.    Sapountzakis E.J. and Mokos V.G. (2003) “Nonuniform Torsion of Composite Bars of Variable Thickness by BEM” Advances in Computational & Experimental Engineering & Sciences, Ch.6, Composite Material Modelling, Proc. of the International Conference on Computational & Experimental Engineering & Sciences, Corfu Island, Greece, July 25-29.

C35.    Sapountzakis E.J. (2003) “Dynamic Analysis of Composite Steel-Concrete Structures with Deformable Connection” Proc. of the 20^th International Conference “Steel Structures and Bridges 2003”, Czech Republic, Prague, September 17-20, pp.349-354.

C36.    Sapountzakis E.J. (2004) “Torsional Vibrations of Composite Bars by BEM” Proc. of the 7^th National Congress on Mechanics, HSTAM2004, Chania, Crete, Greece, June 24-26, Vol.I, pp.263-268.

C37.    Sapountzakis E.J. and Mokos V.G. (2004) “3-D Beam Element of Variable Composite Cross Section Including Warping Effect” Proc. of the European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyväskylä, Finland, July 24 – 28, Vol.I, pp.36.

C38.    Sapountzakis E.J. and Mokos V.G. (2004) “A BEM Solution to Transverse Shear Loading of Beams” Proc. of the 21^st International Congress of Theoretical and Applied Mechanics, ICTAM 2004, Warsaw, Poland, August 15 – 21, pp.199.

C39.    Sapountzakis E.J. (2004) “Torsional Vibrations of Composite Bars of Variable Thickness by BEM” Proc. of the International Conference on Noise and Vibration Engineering, ISMA 2004, Leuven, Belgium, September 20-22, pp.903-918.

C40.    Sapountzakis E.J. and Koroneou A.D. (2004), “Static and Dynamic Analysis of Slab-and-Beam Structures with Deformable Connection – Application in Valleybridges of Metsovo and in Metsovitikos River Bridge”, Proc. of 4^th Interscientific Interuniversity Conference, “The Integrated Development of Epirus”, Μetsovo, Greece, Spring, pp.567-594.

C41.    Sapountzakis E.J. and Tsiatas G.C. (2005) “Flexural Buckling Analysis of Composite Beams of Variable Cross-Section by BEM”, Proc. of the Coupled Problems 2005, Computational Methods for Coupled Problems in Science and Engineering, Santorini, Greece, May 25-28, pp.199.

C42.    Sapountzakis E.J., Mokos V.G. and Koroneou A.D. (2005) “Dynamic Analysis of Beams Including Warping and Shear Deformation Effects – Application in Bridge Deck Analysis”, Proc. of the Fifth International Conference on Earthquake Resistant Engineering Structures ERES 2005, Skiathos, Greece, May 30 –June 1, pp.355-364.

C43.    Sapountzakis E.J. and Mokos V.G. (2005) “3-D Beam Element of Composite Cross Section Including Warping and Shear Deformation Effects”, Proc. of the 5^th International Conference on Computation of Shell and Spatial Structures IASS/IACM 2005, Saltzburg, Austria, June 1-4, pp.130.

C44.    Mokos V.G. and Sapountzakis E.J. (2005) “A BEM Solution to Transverse Shear Stresses in Composite Steel – Concrete Beams”, Proc. of the Eurosteel Conference on Steel and Composite Structures, Maastricht, The Netherlands, June 8-10, 4.3, pp.67-74.

C45.    Sapountzakis E.J. and Tsiatas G.C. (2005) “Flexural – Torsional Buckling Analysis of Beams by BEM”, Proc. of the 5^th GRACM International Congress on Computational Mechanics, Limassol, Cyprus, 29 June – 1 July, pp.787-794.

C46.    Mokos V.G. and Sapountzakis E.J. (2005) “Shear Deformation Coefficients in Composite Beams by BEM”, Proc. of the 5^th GRACM International Congress on Computational Mechanics, Limassol, Cyprus, 29 June – 1 July, pp.135-142.

C47.    Sapountzakis E.J. and Tsiatas G.C. (2005) “Flexural – Torsional Vibrations of Beams by BEM”, Proc. of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing, Rome, Italy, 30 August – 2 September, pp.259-260.

C48.    Sapountzakis E.J. and Mokos V.G. (2005) “Reliability of Thin Tube Theory Relatively with the Exact Torsion Theory”, Proc. of the 5^th National Congress on Steel Structures, Xanthi, Greece, 29 September – 2 October, Vol.II, pp.116-123.

C49.    Sapountzakis E.J. and Mokos V.G. (2006) “Shear Deformation Effect in Nonlinear Analysis of Spatial Beams Subjected to Variable Axial Loading by BEM”, Proc. of the 28^th World Conference on Boundary Elements and other Mesh Reduction Methods, Skiathos, 10-12 May, pp.101-110.

C50.    Sapountzakis E.J. and Mokos V.G. (2006) “Influence of the Interface Forces to the Analysis of Beam Stiffened Plates”, Proc. of the 2006 IASME/WSEAS International Conference on Continuum Mechanics (CM’06), Chalkida, Evia Island, 11-13 May, pp.151-165.

C51.    Sapountzakis E.J. and Protonotariou V.M. (2006) “A Displacement Solution to Transverse Shear Loading of Beams by BEM”, Proc. of the III European Conference on Computational Mechanics – Solids, Structures and Coupled Problems in Engineering, Lisbon, Portugal, 5–8 June, pp.215.

C52.    Sapountzakis E.J. (2006) “Shear Deformation Effect in Nonlinear Analysis of Spatial Composite Beams Subjected in Variable Axial Loading by BEM”, Proc. of the III European Conference on Computational Mechanics – Solids, Structures and Coupled Problems in Engineering, Lisbon, Portugal, 5–8 June, pp.248.

C53.    Sapountzakis E.J. and Mokos V.G. (2006) “Shear Deformation Effect in Second-Order Analysis of Frames Subjected in Variable Axial Loading by BEM”, Proc. of the International Association for Boundary Element Methods IABEM 2006 Conference, Graz, Austria, 10-12 July, pp.131-134.

C54.    Sapountzakis E.J. and Tsiatas G.C. (2006) “Flexural-Torsional Buckling and Vibration Analysis of Composite Beams”, Proc. of the International Association for Boundary Element Methods IABEM 2006 Conference, Graz, Austria, 10-12 July, pp.263-266.

C55.    Sapountzakis E.J. and Mokos V.G. (2006) “Shear Deformation Effect in Second-Order Analysis of Composite Frames Subjected in Variable Axial Loading by BEM”, Proc. of the International Conference on Boundary Element Techniques, Paris, France, 4 – 6 September, pp.287-288.

C56.    Sapountzakis E.J. and Mokos V.G. (2006) “Dynamic Analysis of 3-D Composite Beam Elements Including Warping and Shear Deformation Effects”, Proc. of the 8^th International Conference on Computational Structures Technology, CCST06, Las Palmas de Gran Canaria, Spain, 12 – 15 September, pp.61-62.

C57.    Sapountzakis E.J. and Mokos V.G. (2006) “Analysis of Plates Stiffened by Arbitrarily Placed Parallel Beams”, Proc. of the 8^th International Conference on Computational Structures Technology, CCST06, Las Palmas de Gran Canaria, Spain, 12 – 15 September, pp.29-30.

C58.    Sapountzakis E.J. and Mokos V.G. (2006) “Warping and Shear Deformation Effect in 3-D Beam Element with Application to Spatial Structures”, Proc. of the 15^th Concrete Conference, Alexandroupoli, Greece, 25 – 27 October, Vol. D’, pp.90-104.

C59.    Sapountzakis E.J. and Mokos V.G. (2007) “Dynamic Analysis of Plates Stiffened by Parallel Beams”, Proc. of the Sixth International Conference on Earthquake Resistant Engineering Structures ERES, Bologna, Italy, 11 – 13 June, pp.443-452.

C60.    Sapountzakis E.J. and Mokos V.G. (2007) “Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection”, Proc. of the Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2007, Rethymno, Crete, Greece, 13-15 June, pp.221.

C61.    Sapountzakis E.J. and Dourakopoulos J.A. (2007) “Shear Deformation Effect in Flexural-Torsional Vibrations of Beams by BEM”, Proc. of the Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2007, Rethymno, Crete, Greece, 13-15 June, pp.217.

C62.    Sapountzakis E., Gantes C. and Tsiatas G. (2007) “Flexural-Torsional Buckling and Vibration Analysis of Homogeneous or Composite Constant or Variable Cross Section Beams”, Proc. of the PITHAGORAS Conference for the Scientific Research in National Technical University of Athens, Plomari, Lesvos, Greece, 5-8 July, pp.117-124.

C63.    Sapountzakis E.J. and Panagos D.G. (2007) “Nonlinear Analysis of Beams of Variable Cross Section Including Shear Deformation Effect”, Proc. of the 8^th HSTAM International Congress on Mechanics, Patras, Greece, 12-14 July, pp.377-384.

C64.    Sapountzakis E.J. and Tsipiras V.J. (2007) “Nonlinear Inelastic Uniform Torsion of Bars by BEM”, Proc. of the 8^th HSTAM International Congress on Mechanics, Patras, Greece, 12-14 July, pp.145-152.

C65.    Sapountzakis E.J. and Mokos V.G. (2007) “Analysis of Plates Stiffened by Parallel Beams with Deformable Connection Using BEM”, Proc. of the 8th International Conference on Boundary Element Techniques, Naples, Italy, 24-26 July, pp.155-160.

C66.    Sapountzakis E.J. and Dourakopoulos J.A. (2007) “Shear Deformation Effect in Flexural-Torsional Buckling Analysis of Composite Beams by BEM”, Proc. of the 6th German-Greek-Polish Symposium “Recent Advances in Mechanics”, Alexandroupolis, Greece, 17-21 September, pp.113-114.

C67.    Sapountzakis E.J. and Dourakopoulos J.A. (2007) “Shear Deformation Effect in Flexural-Torsional Buckling Analysis of Beams Using the Boundary Element Method”, Proc. of the 11^th International Conference on Civil, Structural and Environmental Engineering Computing, St. Julians, Malta, 18 – 21 September, paper 103, pp.1-20.

C68.    Sapountzakis E.J. and Panagos D.G. (2008) “Shear Deformation Effect in Nonlinear Analysis of Composite Beams of Variable Cross Section”, Proc. of the 6^th GRACM International Congress on Computational Mechanics, Thessaloniki, Greece, 19-21 June, paper 1206, pp.28.

C69.    Sapountzakis E.J. and Tsipiras V.J. (2008) “Nonlinear Inelastic Uniform Torsion of Composite Bars by BEM”, Proc. of the 6^th GRACM International Congress on Computational Mechanics, Thessaloniki, Greece, 19-21 June, paper 1207, pp.29.

C70.    Sapountzakis E.J. and Tsipiras V.J. (2008) “Effect of Axial Restraint in Composite Bars under Nonlinear Inelastic Uniform Torsion by BEM”, Proc. of the 8^th World Conference on Computational Mechanics (WCCM8) and 5^th European Congress on Computational Methods in Applied Sciences and Engrg (ECCOMAS 2008), Venice, Italy, 30 June – 04 July, paper 397, pp.223.

C71.    Sapountzakis E.J. and Mokos V.G. (2008) “Shear Deformation Effect in Plates Stiffened by Parallel Beams Using BEM”, Proc. of the 9th International Conference on Boundary Element Techniques, Seville, Spain, 9-11 July, pp.215-222.

C72.    Sapountzakis E.J. and Dourakopoulos J.A. (2008) “The Shear Deformation Effect in the Flexural-Torsional Vibration of Composite Beams Using the Boundary Element Method”, Proc. of the Ninth International Conference on Computational Structures Technology, Athens, Greece, 02-05 September, paper27.

C73.    Sapountzakis E.J. and Tsipiras V.J. (2008) “Nonlinear Elastic Nonuniform Torsion of Bars of Arbitrary Cross Section Using the Boundary Element Method”, Proc. of the Ninth International Conference on Computational Structures Technology, Athens, Greece, 02-05 September, paper145.

C74.    Sapountzakis E.J. and Mokos V.G. (2008) “An Improved Model for the Analysis of Composite Steel-Concrete Slab-and-Beam Structures”, Proc. of the 5^th European Conference on Steel and Composite Structures EUROSTEEL 2008, Graz, Austria, 03-05 September, pp.231-236.

C75.    Sapountzakis E.J. and Tsipiras V.J. (2008) “Reliability of the Thin Tube Theory in Bars under Nonlinear Inelastic Uniform Torsion”, Proc. of the 6^th National Congress on Steel Structures, Ioannina, Greece, 02-04 October, volume II, pp.451-458.

C76.    Sapountzakis E.J., Mokos V.G. and Koroneou A.D. (2008) “Earthquake Analysis of Slab-and-Beam Bridge Deck Structures”, Proc. of the 3^rd Hellenic Conference on Earthquake Engineering and Engineering Seismology, Athens, 05-07 November, paper1772, pp.255.

C77.    Sapountzakis E.J. and Mokos V.G. (2009) “Shear Deformation Effect in the Dynamic Analysis of Plates Stiffened by Parallel Beams”, Proc. of the Seventh International Conference on Earthquake Resistant Engineering Structures – ERES09, Limassol, Cyprus, 11-13 May, pp.357-366.

C78.    Sapountzakis E.J. and Dourakopoulos J.A. (2009) “Nonlinear Dynamic Analysis of Timoshenko Beams”, Proc. of the Computational Methods in Structural Dynamics and Earthquake Engineering – COMPDYN 2009, Island of Rhodes, Greece, 22-24 June, paperCD142, pp.33.

C79.    Sapountzakis E.J. and Tsipiras V.J. (2009) “Nonlinear Nonuniform Torsional Vibrations of Bars by BEM”, Proc. of the Computational Methods in Structural Dynamics and Earthquake Engineering – COMPDYN 2009, Island of Rhodes, Greece, 22-24 June, paperCD143, pp.27.

C80.    Sapountzakis E.J. and Dourakopoulos J.A. (2009) “Flexural – Torsional Postbuckling Analysis of Beams of Arbitrary Cross Section”, Proc. of the 2^nd South-East European Conference on Computational Mechanics – SEECCM 2009, Island of Rhodes, Greece, 22-24 June, paperSE129, pp.140.

C81.    Sapountzakis E.J. and Tsipiras V.J. (2009) “Composite Bars of Arbitrary Cross Section in Nonlinear Elastic Nonuniform Torsion by BEM”, Proc. of the 2^nd South-East European Conference on Computational Mechanics – SEECCM 2009, Island of Rhodes, Greece, 22-24 June, paperSE128, pp.132.

C82.    Sapountzakis E.J. and Kampitsis A.E. (2009) “Nonlinear Dynamic Analysis of Timoshenko Beam-Columns Partially Supported on Elastic Foundation”, Proc. of the International Conference on Computational Modelling and Advanced Simulations, Bratislava, Slovakia, 30 June – 03 July, paper50, pp.105.

C83.    Sapountzakis E.J. and Dourakopoulos J.A. (2009) “Flexural – Torsional Nonlinear Analysis of Timoshenko Beams of Arbitrary Cross Section by BEM”, Proc. of the 10th International Conference on Boundary Element Techniques – BETEQ 2009, Athens, Greece, 22-24 July, pp.99-109.

C84.    Sapountzakis E.J. and Tsipiras V.J. (2009) “Warping Shear Stresses in Nonlinear Nonuniform Torsional Vibrations of Bars by BEM”, Proc. of the 10th International Conference on Boundary Element Techniques – BETEQ 2009, Athens, Greece, 22-24 July, pp.69-79.

C85.    Sapountzakis E.J. and Mokos V.G. (2009) “Secondary Torsional Moment Deformation Effect by BEM”, Proc. of the 10th International Conference on Boundary Element Techniques – BETEQ 2009, Athens, Greece, 22-24 July, pp.81-88.

C86.    Sapountzakis E.J. and Dourakopoulos J.A. (2009) “Lateral Buckling Analysis of Beams of Arbitrary Cross Section by BEM”, Proc. of the 10th International Conference on Boundary Element Techniques – BETEQ 2009, Athens, Greece, 22-24 July, pp.89-98.

C87.    Sapountzakis E.J. and Mokos V.G. (2009) “Buckling Analysis of Plates Stiffened by Parallel Beams”, Proc. of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing CC2009, Funchal, Madeira Island, Portugal, 01-04 September, paper35.

C88.    Sapountzakis E.J. and Mokos V.G. (2009) “A Displacement Solution for Transverse Shear Loading of Composite Beams Using the Boundary Element Method”, Proc. of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing CC2009, Funchal, Madeira Island, Portugal, 01-04 September, paper208.

C89.    Sapountzakis E.J. and Kampitsis A.E. (2009) “Nonlinear Dynamic Analysis of Partially Supported Beam-Columns on Nonlinear Elastic Foundation Including Shear Deformation Effect”, Proc. of the 3^rd Greek-Japan Workshop “Seismic Design, Observation, Retrofit of Foundations”, Gazetas G., Goto Y. and Tazoh T. (eds.), Santorini, Greece, 22 – 23 September, pp.302-329.

C90.    Sapountzakis E.J., Mokos V.G. and Koroneou A.D. (2009) “Influence of Creep and Shrinkage Effects in the Analysis of Reinforced Concrete Slab-and-Beam Bridge Deck Structures”, Proc. of the 16^th Concrete Conference, Pafos, Cyprus, 21-23 October, paper 260800, pp.1-12.

C91.    Sapountzakis E.J. and Kampitsis A.E. (2010) “Nonlinear Dynamic Analysis of Shear Deformable Beam-Columns on Nonlinear Two-Parameter Viscoelastic Foundation”, Proc. of the IV European Conference on Computational Mechanics – ECCM 2010, Paris, France, 16 – 21 May, paper 47.

C92.    Sapountzakis E.J. and Dikaros I.C. (2010) “Nonlinear Flexural – Torsional Dynamic Analysis of Beams of Arbitrary Cross Section by BEM”, Proc. of the 9^th HSTAM International Congress on Mechanics, Limassol, Cyprus, 12-14 July, pp.319-327.

C93.    Sapountzakis E.J. and Kampitsis A.E. (2010) “Nonlinear Analysis of Shear Deformable Beam-Columns Partially Supported on Tensionless Winkler Foundation”, Proc. of the 11th International Conference on Boundary Element Techniques – BETEQ 2010, Berlin, Germany, 12-14 July, pp.398-405.

C94.    Sapountzakis E.J. and Tsipiras V.J. (2010) “Nonlinear Nonuniform Torsional Vibrations of Shear Deformable Bars – Application to Torsional Postbuckling Configurations”, Proc. of the 11th International Conference on Boundary Element Techniques – BETEQ 2010, Berlin, Germany, 12-14 July, pp.482-489.

C95.    Sapountzakis E.J. and Kampitsis A.E. (2010) “Nonlinear Analysis of Timoshenko Beams on a Tensionless Three-Parameter Foundation”, Proc. of the Tenth International Conference on Computational Structures Technology CST2010, Valencia, Spain, 14-17 September, paper297.

C96.    Sapountzakis E.J. and Tsipiras V.J. (2010) “Inelastic Nonuniform Torsion of Bars Using the Boundary Element Method”, Proc. of the Tenth International Conference on Computational Structures Technology CST2010, Valencia, Spain, 14-17 September, paper294.

C97.    Sapountzakis E.J., Kampitsis A.E.  and Koroneou A.D. (2010), “Nonlinear Dynamic Analysis of Beam-Columns of Bridge Piers – Application in Valleybridges of Metsovo and in Metsovitikos River Bridge”, Proc. of 6^th Interscientific Interuniversity Conference, “The Integrated Development of Highland Areas”, Μetsovo, Greece, 16-19 September, pp.1-24.

C98.    Sapountzakis E.J. and Dikaros I.C. (2011) “Nonlinear Effects in Flexural – Torsional Vibrations of Beams of Arbitrary Cross Section”, Proc. of the 3^rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering – COMPDYN 2011, Corfu, Greece, 25-28 May, paper084.

C99.    Sapountzakis E.J. and Kampitsis A.E. (2011) “Shear Deformable Beams on Nonlinear Viscoelastic Foundation under Moving Loading”, Proc. of the IV International Conference on Computational Methods for Coupled Problems in Science and Engineering – COUPLED PROBLEMS 2011, Kos Island, Greece, 20 – 22 June, paper16.

C100.  Dourakopoulos J.A. and Sapountzakis E.J. (2011) “A Beam Element for Postbuckling Analysis Using BEM”, Proc. of the 7^th GRACM International Congress on Computational Mechanics, Athens, Greece, 30 June – 2 July, paper2.

C101.  Sapountzakis E.J. and Dikaros I.C. (2011) “Large Deflection Analysis of Plates Stiffened by Parallel Beams”, Proc. of the 12h International Conference on Boundary Element and Meshless Techniques, Brasilia, Brazil, 13-15 July, pp.125-132.

C102.  Tsipiras V.J. and Sapountzakis E.J. (2011) “Secondary Torsional Moment Deformation Effect in Inelastic Nonuniform Torsion of Bars by BEM”, Proc. of the IABEM 2011 Symposium of the International Association for Boundary Element Methods, Brescia, Italy, 05-08 September, pp.323-330.

C103.  Sapountzakis E.J. and Kampitsis A.E. (2011) “Nonlinear Inelastic Analysis of Beams on a Nonlinear Foundation”, Proc. of the Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing CC2011, Chania, Crete, Greece, 06-09 September, paper138.

C104.  Mokos V.G. and Sapountzakis E.J. (2011) “A Three-Dimensional Beam Including Torsional Warping and Shear Deformation Effects arising from Shear Forces and Secondary Torsional Moments”, Proc. of the Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing CC2011, Chania, Crete, Greece, 06-09 September, paper137.

C105.  Sapountzakis E.J. and Kampitsis A.E. (2011) “Nonlinear Vibrations of Piles in Viscoelastic Foundations”, Proc. of the Eighth International Conference on Earthquake Resistant Engineering Structures, ERES2011, Chianciano Terme, Italy, 07-09 September, pp.151-162.

C106.  Sapountzakis E.J., Tsipiras V.J. and Mokos V.G. (2011) “Secondary Torsional Moment Deformation Effect in the Analysis of Bars of Arbitrary Cross Section”, Proc. of the 7^th National Congress on Steel Structures, Volos, Greece, 29 September – 01 October, pp.280-287.

C107.  Mokos V.G. and Sapountzakis E.J. (2011) “Torsional and Shear Warping in 3-D Beam Element Including Secondary Torsional Moment – Application in the Analysis of Steel Structures”, Proc. of the 7^th National Congress on Steel Structures, Volos, Greece, 29 September – 01 October, pp.264-271.

C108.  Sapountzakis E.J. and Kampitsis A.E. (2012) “Inelastic Analysis of Beams on Two Parameter Elastoplastic Foundation”, Proc. of the 13th International Conference on Boundary Element and Meshless Techniques, Prague, Czech Republic, 03-05 September, pp. 387-392.

C109.  Sapountzakis E.J. and Dourakopoulos J.A. (2012) “Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams”, Proc. of the 13th International Conference on Boundary Element and Meshless Techniques, Prague, Czech Republic, 03-05 September, pp.134-140.

C110.  Sapountzakis E.J. and Dikaros I.C. (2012) “Nonlinear Flexural-Torsional Dynamic Analysis of Beams of Variable Cross Section Using the Boundary Element Method – Application to the Analysis of Wind Turbine Towers”, Proc. of The Eleventh International Conference on Computational Structures Technology CST2012, Dubrovnik, Croatia, 04-07 September, paper19.

C111.  Tsipiras V.J. and Sapountzakis E.J. (2012) “Nonlinear Inelastic Nonuniform Torsion of Bars Including the Secondary Torsional Moment Deformation Effect”, Proc. of The Eleventh International Conference on Computational Structures Technology CST2012, Dubrovnik, Croatia, 04-07 September, paper296.

C112.  Sapountzakis E.J. and Kampitsis A.E. (2012) “Nonlinear Seismic Response Analysis of Piles in Nonlinear Viscoelastic Foundation”, CD-ROM Proc. of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012), Eds.: Eberhardsteiner, J.; Böhm, H.J.; Rammerstorfer, F.G., Publisher: Vienna University of Technology, Austria, ISBN: 978-3-9502481-9-7, Vienna, Austria, 10-14 September, pp.1-13.

C113.  Sapountzakis E.J. and Dikaros I.C. (2013) “Deformable Connection Effect in the Large Deflection Analysis of Stiffened Plates”, Proc. of the 10th HSTAM 2013 International Congress on Mechanics, Chania, Crete, Greece, 25-27 May, pp.198, paper9.

C114.  Sapountzakis E.J., Dikaros I.C., Kampitsis A.E. and Panagiotakopoulos G.D. (2013) “Nonlinear Response of Wind Turbine Towers under Wind and Seismic Excitations”, Proc. of the 10th HSTAM 2013 International Congress on Mechanics, Chania, Crete, Greece, 25-27 May, pp.152, paper20.

C115.  Kampitsis A.E., Sapountzakis E.J., Giannakos S.K. and Gerolymos N.A. (2013) “Seismic Soil-Pile Kinematic and Inertia Interaction — 3D versus Beam Modeling”, Proc. of the 4^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering – COMPDYN 2013, Kos Island, Greece, 12-14 June, paper1067.

C116.  Dourakopoulos J.A. and Sapountzakis E.J. (2013) “Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection”, Proc. of the 4^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering – COMPDYN 2013, Kos Island, Greece, 12-14 June, paper1463.

C117.  Sapountzakis E.J., Tsipiras V.J. and Gkesos P.G. (2013) “Warping Transmission in 3-D Beam Element Including Secondary Torsional Moment Deformation Effect”, Proc. of the III South-East Conference on Computational Mechanics – SEECCM III, Kos Island, Greece, 12-14 June, paper2030.

C118.  Kampitsis A.E. and Sapountzakis E.J. (2013) “Elastoplastic Dynamic Analysis of Beam-Foundation Systems Employing BEM”, Proc. of the 14^th International Conference on Boundary Element and Meshless Techniques, Paris, France, 16-18 July, pp.329-334.

C119.  Sapountzakis E.J. and Tsiptsis I.N. (2013) “Quadratic B-Splines in the Analog Equation Method for the Nonuniform Torsional Problem of Bars”, Proc. of the 14^th International Conference on Boundary Element and Meshless Techniques, Paris, France, 16-18 July, pp.388-393.

C120.  Dikaros I.C. and Sapountzakis E.J. (2013) “Nonuniform Shear Warping Analysis of Composite Beams of Arbitrary Cross Section Using the Boundary Element Method”, Proc. of  the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing CC2013, Cagliari, Sardinia, Italy, 03-06 September, paper211, pp.1-20.

C121.  Sapountzakis E.J. and Kampitsis A.E. (2013) “Cyclic Inelastic Response of Beam-Foundation Systems Using the Boundary Element Method”, Proc. of  the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing CC2013, Cagliari, Sardinia, Italy, 03-06 September, paper212, pp.1-12.

C122.  Sapountzakis E.J. and Dikaros I.C. (2014) “Advanced Beam Element for the Analysis of Engineering Structures”, Proc. of the 15th International Conference on Boundary Elements and Meshless Techniques, Florence (Firenze), Italy, 15-17 July, pp. 158-166.

C123.  Sapountzakis E.J., Tsipiras V.J. and Argyridi A.K. (2014) “Torsional Vibration Analysis of Bars Including Secondary Torsional Shear Deformation Effect by BEM”, Proc. of the 15th International Conference on Boundary Elements and Meshless Techniques, Florence (Firenze), Italy, 15-17 July, pp. 167-172.

C124.  Dikaros I.C. and Sapountzakis E.J. (2014) “Generalized Warping Analysis of Composite Beams of Arbitrary Cross Section by BEM”, Proc. of the 15th International Conference on Boundary Elements and Meshless Techniques, Florence (Firenze), Italy, 15-17 July, pp. 173-180.

C125.  Kampitsis A.E. and Sapountzakis E.J. (2014) “Boundary Element Formulation for the Inelastic Dynamic Analysis of Beams”, Proc. of the 11th World Conference on Computational Mechanics WCCM XI – 5th European Conference on Computational Mechanics ECCM V, Barcelona, Spain, 20-25 July, paperA2923.

C126.  Mokos V.G. and Sapountzakis E.J. (2014) “Composite Bars Subject to Uniform Torsion with Deformable Shear Connection Using the Boundary Element Method”, Proc. of the Twelfth International Conference on Computational Structures Technology CST2014, Naples, Italy, 2-5 September, paper197, pp.1-12.

C127.  Sapountzakis E.J. and Tsiptsis I.N. (2014) “Generalized Warping Analysis of Beams of Arbitrary Cross Section Using Isogeometric Methods”, Proc. of the Twelfth International Conference on Computational Structures Technology CST2014, Naples, Italy, 2-5 September, paper253, pp.1-19.

C128.  Sapountzakis E.J. and Dikaros I.C. (2014) “An Advanced Beam Element for the Analysis of Steel Structures”, Proc. of the 8th Hellenic National Conference of Steel Structures, Tripoli, Greece, 02-04 October, p.39-40, pp.1-8.

C129.  Kampitsis A.E. and Sapountzakis E.J. (2014) “A New Computational Tool for the Inelastic Analysis of Steel Structures”, Proc. of the 8th Hellenic National Conference of Steel Structures, Tripoli, Greece, 02-04 October, p.43-44, pp.1-7.

C130.  Dikaros I.C., Sapountzakis E.J., Argyridi A.K. and Papadopoulos D.S. (2015) “Generalized Warping Effect in the Dynamic Analysis of Beams of Arbitrary Cross Section”, Proc. of the 5^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2015, Crete, Greece, May 25-27, paperC441.

C131.  Sapountzakis E.J. and Tsiptsis I.N. (2015) “Isogeometric Methods in Torsional Vibration Analysis of Bars Including Secondary Torsional Shear Deformation Effect”, Proc. of the III International Conference on Isogeometric Analysis, Trondheim, Norway, June 01-03, pp.48.

C132.  Dikaros I.C. and Sapountzakis E.J. (2015) “Analysis of Beams Including Cross Sectional Warping and In-plane Deformation by BEM”, Proc. of the 16^th International Conference on Boundary Elements and Meshless Techniques, Valencia, Spain, July 06-08, pp.215-222.

C133.  Sapountzakis E.J., Tsellos L.N. and Dikaros I.C. (2015) “Advanced Beam Element Under Longitudinal External Loading by BEM”, Proc. of the 16^th International Conference on Boundary Elements and Meshless Techniques, Valencia, Spain, July 06-08, pp.267-272.

C134.  Kampitsis A.E., Panagiotakopoulos G.D., Koumousis V.K. and Sapountzakis E.J. (2015) “Structural Optimization Design of Wind Turbine Tower Using Game Theory”, Proc. of the 8^th GRACM International Congress on Computational Mechanics, Volos, Greece, July 12-15, p.148, pp.1-9.

C135.  Sapountzakis E.J., Dikaros I.C., Argyridi A.K. and Panos S.K. (2015) “Analysis of Framed Structures Including Generalized Warping Effects”, Proc. of the 8^th GRACM International Congress on Computational Mechanics, Volos, Greece, July 12-15, p.33, pp.1-10.

C136.  Sapountzakis E.J. and Tsiptsis I.N. (2015) “Generalized Warping Analysis of Curved Beams by Isogeometric Methods”, Proc. of the Eighth International Conference on Advances in Steel Structures ICASS2015, Lisbon, Portugal, July 21–24, paper123, pp.1-20.

C137.  Argyridi A.K. and Sapountzakis E.J. (2015) “Analysis of Rotating Beams by the Boundary Element Method”, Proc. of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing CC2015, Prague, Czech Republic, September 01-04, paper232, pp.1-16.

C138.  Dikaros I.C. and Sapountzakis E.J. (2016) “Distorsional Analysis of Beams of Arbitrary Cross Section by BEM”, Proc. of the 11th HSTAM International Congress on Mechanics, Athens, Greece, 27-30 May.

C139.  Argyridi A.K. and Sapountzakis E.J. (2016) “Generalized Warping in Flexural-Torsional Buckling Analysis of Composite Beams”, Proc. of the 11th HSTAM International Congress on Mechanics, Athens, Greece, 27-30 May.

C140.  Kampitsis A.E. and Sapountzakis E.J. (2016) “A Fibre Plasticity Model for the Dynamic Analysis of Wind Turbine Towers”, Proc. of the 7th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), Hersonissos, Crete, Greece, 05-10 June.

C141.  Sapountzakis E.J. and Tsiptsis I.N. (2016) “Higher Order Beam Theories and Isogeometric Methods in the Analysis of Curved Bridges”, Proc. of the 1st International Conference on Natural Hazards & Infrastructure ICONHIC2016, Chania, Crete, Greece, 28-30 June.

C142.  Sapountzakis E.J., Syrimi P.G., Pantazis I.A. and Antoniadis I.A. (2016) “KDamper Concept in Seismic Isolation of Bridges”, Proc. of the 1st International Conference on Natural Hazards & Infrastructure ICONHIC2016, Chania, Crete, Greece, 28-30 June.

C143.  Tsiptsis I.N. and Sapountzakis E.J. (2016) “Isogeometric Methods in Higher-Order Curved Beam Theories”, Proc. of the 9th German-Greek-Polish Symposium on “Recent Advances in Mechanics”, Chania, Crete, Greece, 04-09 September.

C144.  Argyridi A.K. and Sapountzakis E.J. (2017) “Higher Order Beam Element for the Local Buckling Analysis of Beams”, Proc. of the 6^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2017, Rhodes Island, Greece, June 15-17.

C145.  Tsiptsis I.N. and Sapountzakis E.J. (2017) “Isogeometric Methods in Dynamic Analysis of Curved Beams Including Warping and Distortional Effects”, Proc. of the 6^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2017, Rhodes Island, Greece, June 15-17.

C146.  Syrimi P.G., Sapountzakis E.J., Tsiatas G.C. and Antoniadis I.A. (2017) “Parameter Optimization of the Kdamper Concept in Seismic Isolation of Bridges Using Harmony Search Algorithm”, Proc. of the 6^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2017, Rhodes Island, Greece, June 15-17.

C147.  Kapasakalis K.A., Sapountzakis E.J. and Antoniadis I.A. (2017) “Implementation of the Kdamper Concept to Wind Turbine Towers”, Proc. of the 6^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2017, Rhodes Island, Greece, June 15-17, DOI: 10.7712/120117.5409.17866.

C148.  Antoniadis I., Sapountzakis I., Syrimi P., Kapasakalis K. and Sapountzakis E.J. (2017) “New Concepts for the Seismic Protection of Structures Based on Negative Stiffness Damping and Seismic Metamaterials”, Proc. of the Safe Athens 2017 New Technologies & Civil Protection, Athens, Greece, June 28-30.

C149.  Sapountzakis E.J. and Dikaros I.C. (2017) “Higher-Order Theory for the Analysis of Composite Beams”, Proc. of 20^th International Conference on Composite Structures, ICCS20, Paris, France, 04-07 September, paper1021, pp.11.

C150.  Argyridi A.K. and Sapountzakis E.J. (2017) “Generalized Warping in Flexural-Torsional Postbuckling Analysis of Composite Beams”, Proc. of the 9th Hellenic National Conference of Steel Structures, Larisa, Greece, 05-07 October.

C151.  Syrimi P.G., Sapountzakis E.J. and Tsiatas G.C. (2018) “Optimum Design of a Seismic Isolation System with Negative Stiffness Elements – Application on Bridge Structures”, Proc. of the 18^th TCG Concrete Conference, Athens, Greece, March 29-31.

C152.  Argyridi A.K. and Sapountzakis E.J. (2018) “Nonlinear Local Buckling Analysis of Beams Employing Higher Order Beam Theories”, Proc. of the 9th GRACM International Congress on Computational Mechanics, Chania, Crete, Greece, 04-06 June.

C153.  Tsiatas G.C., Siokas A.G. and Sapountzakis E.J. (2018) “A Fiber Approach to the Large Deflection Analysis of Beams by BEM”, Proc. of the 9th GRACM International Congress on Computational Mechanics, Chania, Crete, Greece, 04-06 June.

C154.  Kapasakalis K., Sapountzakis E.J. and Antoniadis I.A. (2018) “KDamper Concept in Seismic Isolation of Multi Storey Building Structures”, Proc. of the 9th GRACM International Congress on Computational Mechanics, Chania, Crete, Greece, 04-06 June, ISBN 978-618-81537-5-2, 56-65.

C155.  Syrimi P.G., Sapountzakis E.J. and Antoniadis I.A. (2018) “KDamper Concept Vs Other Devices for Seismic Effects Mitigation on Bridge Structures”, Proc. of the 16^th European Conference on Earthquake Engineering, 16ECEE, Thessaloniki, Greece, June 18-21.

C156.  Kapasakalis K., Sapountzakis E.J. and Antoniadis I.A. (2018) “Optimal Design of the KDamper Concept for Structures on Compliant Supports”, Proc. of the 16^th European Conference on Earthquake Engineering, 16ECEE, Thessaloniki, Greece, June 18-21.

C157.  Argyridi A.K., Sapountzakis E.J. and Tsalamegka E.I. (2018) “Higher Order Beam Theories in Local Bucking Analysis of Beams – Application in Standard Steel Profiles”, Proc. of the Eighth International Conference on Thin-Walled Structures (ICTWS 2018), Lisbon, Portugal, 24-27 July.

C158.  Syrimi P.G., Sapountzakis E.J., Alamir C.H.T. and Antoniadis I.A. (2018) “Novel Devices with Negative Stiffness Elements for Seismic Isolation of Bridges on Compliant Base”, Proc. of The Thirteenth International Conference on Computational Structures Technology CST2018, Sitges, Barcelona, Spain, 4-6 September.

C159.  Argyridi A.K., Sapountzakis E.J. and Chatzopoulos Z.N. (2018) “Local Bucking Analysis of Thin- or Thick- Walled Beams Employing Advanced Beam Elements”, Proc. of The Thirteenth International Conference on Computational Structures Technology CST2018, Sitges, Barcelona, Spain, 4-6 September.

C160.  Kapasakalis K., Sapountzakis E.J. and Antoniadis I.A. (2018) “Kdamper Concept in Seismic Isolation of Building Structures with Soil Structure Interaction”, Proc. of The Thirteenth International Conference on Computational Structures Technology CST2018, Sitges, Barcelona, Spain, 4-6 September.

C161.  Antoniadis I.A., Kapasakalis K.A. and Sapountzakis E.J. (2019) “Advanced Negative Stiffness Absorbers for the Seismic Protection of Structures”, Proc. of the International Conference on Key Enabling Technologies 2019 KEYTECH2019, Istanbul, Turkey, April 24-26, DOI: https://doi.org/10.1063/1.5123704.

C162.  Antoniadis I.A., Kapasakalis K.A. and Sapountzakis E.J. (2019) “Isolation or Damping? A Soil-Dependent Approach Based on the KDamper Concept”, Proc. of the 2^nd International Conference on Natural Hazards & Infrastructure ICONHIC 2019, Crete, Greece, June 23-26.

C163.  Sapountzakis E.J., Kapasakalis K.A. and Antoniadis I.A. (2019) “Negative Stiffness Elements in Seismic Isolation of Bridges”, Proc. of the 2^nd International Conference on Natural Hazards & Infrastructure ICONHIC 2019, Crete, Greece, June 23-26.

C164.  Kapasakalis K.A., Antoniadis I.A. and Sapountzakis, E.J. (2019) “Control of Multi Storey Building Structures with a New Passive Vibration Control System Combining Base Isolation with KDamper”, Proc. of the 7^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2019, Crete, Greece, June 24-26, DOI: 10.7712/120119.7299.

C165.  Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2019) “KDamper Concept for Base Isolation and Damping of High-Rise Building Structures”, Proc. of the 14^th International Conference on Vibration Problems ICOVP 2019, Crete, Greece, September 01-04, DOI: 10.1007/978-981-15-8049-9_16.

C166.  Kapasakalis K.A., Alamir C.H.T., Antoniadis I.A. and Sapountzakis E.J. (2019) “Frequency Based Design of the KDampr Concept for Seismic Isolation of Bridges”, Proc. of the 14^th International Conference on Vibration Problems ICOVP 2019, Crete, Greece, September 01-04, DOI: 10.1007/978-981-15-8049-9_11.

C167.  Bollano P.O.N., Kapasakalis K.A., Sapountzakis E.J. and Antoniadis I.A. (2019) “Design and Optimization of the Kdamper Concept for Seismic Protection of Bridges”, Proc. of the 14^th International Conference on Vibration Problems ICOVP 2019, Crete, Greece, September 01-04, DOI: 10.1007/978-981-15-8049-9_12.

C168.  Argyridi A.K., Florakis G.I. and Sapountzakis E.J. (2019) “Higher Order Beam Theory in Local Buckling Analysis of Laterally Braced Beams”, Proc. of the 14^th International Conference on Vibration Problems ICOVP 2019, Crete, Greece, September 01-04.

C169.  Argyridi A.K., Chatzopoulos Z.N. and Sapountzakis E.J. (2019) “Higher Order Beam Theory in Linear Analysis of Beams – Axial Modes of Arbitrary Cross Sections”, Proc. of the 14^th International Conference on Vibration Problems ICOVP 2019, Crete, Greece, September 01-04.

C170.  Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2019) “Innovating Isolation Systems with Negative Stiffness Elements for Seismic Protection of Structures”, Proc. of the 4^th Panhellenic Conference on Antiseismic Mechanics Technical Seismology, Athens, Greece, September 05-07.

C171.  Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2019) “Implementation of the KDamper Concept for Base Isolation to a Typical Concrete Building Structure”, Proc. of the 12^th International Congress on Mechanics 12HSTAM2019, Thessaloniki, Greece, September 22-25.

C172.  Argyridi A.K. and Sapountzakis E.J. (2019) “Axial Normal Stress Distribution of Axially Loaded Beams by Higher Order Beam Theory”, Proc. of the 12^th International Congress on Mechanics 12HSTAM2019, Thessaloniki, Greece, September 22-25.

C173.  Kapasakalis K.A., Bollano P.O.N., Sapountzakis E.J. and Antoniadis I.A. (2020) “Comparison of Alternative Dynamic Vibration Mitigation Approaches for Wind Turbine Towers”, Proc. of the 11^th International Conference on Structural Dynamics, EURODYN 2020, Athens, Greece, November 23-26, DOI: 10.47964/1120.9110.20133.

C174.  Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2020) “Optimal Design of Advanced Negative Stiffness Absorbers”, Proc. of the 11^th International Conference on Structural Dynamics, EURODYN 2020, Athens, Greece, November 23-26, DOI: 10.47964/1120.9341.20128.

C175.  Kapasakalis K.A., Alvertos A.E., Mantakas A.G., Antoniadis I.A. and Sapountzakis E.J. (2020) “Advanced Negative Stiffness Vibration Absorber Coupled with Soil-Structure Interaction for Seismic Protection of Buildings”, Proc. of the 11^th International Conference on Structural Dynamics, EURODYN 2020, Athens, Greece, November 23-26, DOI: 10.47964/1120.9340.19963.

C176.  Kapasakalis K.A., Florakis G., Antoniadis I.A. and Sapountzakis E.J. (2021) “Seismic Protection of Multi-Story Structures with Novel Vibration Absorption Devices Combining Negative Stiffness and Inerter”, Proc. of the 8^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2021, streamed from Athens, Greece, June 28-30, DOI: 10.7712/120121.8765.19225.

C177.  Kalogerakou M., Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2021) “Stiff Dynamic Absorbers for the Vertical Seismic Protection of Structures”, Proc. of the 8^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2021, streamed from Athens, Greece, June 28-30, DOI: 10.7712/120121.8657.19337.

C178.  Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2021) “Vibration Control of Wind Turbine Towers with KDamper-Based Designs”, Proc. of the 8^th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2021, streamed from Athens, Greece, June 28-30, DOI: 10.7712/120121.8601.19338.

C179.  Florakis G., Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2021) “Novel Negative Stiffness Stiff Seismic Base Absorbers for Horizontal Seismic Protection of Structures”, Proc. of the 10^th GRACM International Congress on Computational Mechanics 10GRACM 2021, Virtual Congress, July 05-07.

C180.  Kapasakalis K.A., Florakis G.I., Antoniadis I.A. and Sapountzakis E.J. (2021) “Seismic Protection of Multi Story Building Structures with Distributed KDamper Devices”, Proc. of the 27^th International Congress on Sound and Vibration ICSV27 2021, Virtual Congress, July 11-16.

C181.  Kapasakalis K.A. Antoniadis I.A. and Sapountzakis E.J. (2021) “Novel Negative Stiffness Devices Based on KDamper for Vertical Vibration Absorption of Structures”, Proc. of the 27^th International Congress on Sound and Vibration ICSV27 2021, Virtual Congress, July 11-16.

C182.  Mantakas A., Kalderon M., Antoniadis I.A. and Sapountzakis E.J. (2022) “Locally Resonant Metamaterials with Dynamic Directional Amplification for Mitigation of Seismic Waves”, Proc. of the 3^rd International Conference on Natural Hazards & Infrastructure ICONHIC 2022, Athens, Greece, July 05-07.

C183.  Florakis G., Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2022) “Seismic Base Absorber with a Novel Negative Stiffness Mechanism for the Horizontal Seismic Protection of Structures”, Proc. of the 28^th International Congress on Sound and Vibration ICSV28 2022, Singapore, July 24-28.

C184.  Kapasakalis K.A., Florakis G., Antoniadis I.A. and Sapountzakis E.J. (2022) “Seismic Protection of Multi-Story Building Structures with Geometric Nonlinear Negative Stiffness-Based Oscillator”, Proc. of the 28^th International Congress on Sound and Vibration ICSV28 2022, Singapore, July 24-28.

C185.  Kapasakalis K.A., Kampitsis A.E. and Sapountzakis E.J. (2022) “Optimum Design of a New Passive Vibration Control System on Onshore Monopile Wind Turbines”, Proc. of the 13^th International Congress on Mechanics 13HSTAM2022, Patras, Greece, August 24-28.

C186.  Florakis G.I., Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2022) “A Novel Seismic Base Isolation Device for the Horizontal Protection of Structures Using a Negative Stiffness Mechanism with Gas Springs”, Proc. of the 13^th International Congress on Mechanics 13HSTAM2022, Patras, Greece, August 24-28.

C187.  Mantakas A., Kapasakalis K., Antoniou M., Kalderon M., Antoniadis I.A. and Sapountzakis E.J. (2022) “Design of a Negative Stiffness Vibration Absorber for Seismic Upgrade of Residential Buildings on Rocking Foundations”, Proc. of the 13^th International Congress on Mechanics 13HSTAM2022, Patras, Greece, August 24-28.

C188. Καπασακάλης Κ., Μάντακας Α., Καλδερών Μ., Σαπουντζάκης Ε. και Αντωνιάδης Ι. (2022). “Σεισμική Προστασία Υφιστάμενων Κτιρίων με Σεισμική Βάση Απορρόφησης Κραδασμών Αρνητικής Στιβαρότητας”, Πρακτικά 5 oυ Πανελλήνιου Συνεδρίου Αντισεισμικής Μηχανικής Τεχνικής Σεισμολογίας, Αθήνα, Οκτώβριος 20-22.

C189. Mantakas A., Kapasakalis K.A., Kalderon M., Antoniou M., Antoniadis I.A. and Sapountzakis E.J. (2023) “3D Numerical Investigation of an Extended KDamper Absorber for Seismic Retrofitting of Low-Rise Buildings”, Proc. of the 9 th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2023, Athens, Greece, June 12-14.

C190. Kapasakalis K.A., Mantakas A., Kalderon M., Antoniou M. and Sapountzakis E.J. (2023) “Performance Evaluation of Negative Stiffness- Based Vibration Control Devices for Seismic Protection of Building Structures”, Proc. of the 9 th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2023, Athens, Greece, June 12-14.

C191. Florakis G.I., Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2023) “Dimensioning and Realistic Design of a Novel Based Negative Stiffness Seismic Isolator”, Proc. of the XII International Conference on Structural Dynamics EURODYN 2023, Delft, Netherlands, July 02-05.

C192. Mantakas A., Chondrogiannis K.A., Kalderon M., Kapasakalis K.A., Chatzi E., Sapountzakis E.J. and Antoniadis I.A. (2023) “Design and Experimental Verification of an Extended KDamper – Based Vibration Absorber”, Proc. of the XII International Conference on Structural Dynamics EURODYN 2023, Delft, Netherlands, July 02-05.

C193. Kapasakalis K.A., Kampitsis A. and Sapountzakis E.J. (2023) “Novel Vibration Control Systems on Offshore Monopile Wind Turbines”, Proc. of the XII International Conference on Structural Dynamics EURODYN 2023, Delft, Netherlands, July 02-05.

C194. Kapasakalis K.A., Florakis G.I., Kapasakalis S.A., and Sapountzakis E.J. (2023) “Seismic Protection of Multi-Story Buildings with Distributed Negative Stiffness Absorbers”, Proc. of the XII International Conference on Structural Dynamics EURODYN 2023, Delft, Netherlands, July 02-05.

C195. Theodorou D., Kapasakalis K.A. and Sapountzakis E.J. (2023) “Design and Implementation of a Negative Stiffness Seismic Absorber that Accounts 76 for Geometric and Material Nonlinearity”, Proc. of the 29 th International Congress on Sound and Vibration ICSV29, Prague, Czech Republic, July 09-13. 

C196. Florakis G.I., Kapasakalis K.A., Antoniadis I.A. and Sapountzakis E.J. (2023) “Multi-Objective Optimization of a Seismic Base Absorber Incorporating Negative Stiffness”, Proc. of the 29th International Congress on Sound and Vibration ICSV29, Prague, Czech Republic, July 09-13.