Edit Profile (opens in new tab) Teixeira de Freitas, João António Compute Distance To: Compute Author ID: teixeira-de-freitas.joao-antonio Published as: Teixeira de Freitas, J. A.; Teixeira de Freitas, João A.; de Freitas, J. A. Teixeira; Teixeira de Freitas, João António; De Freitas, João António Teixeira; De Freitas, J. A. Teixeira; Teixeira De Freitas, J. A.; de Freitas, J. A. T. more...less Documents Indexed: 56 Publications since 1984 Co-Authors: 19 Co-Authors with 32 Joint Publications 82 Co-Co-Authors all top 5 Co-Authors 18 single-authored 7 Moldovan, Ionuţ Dragoş 5 Moitinho de Almeida, José Paulo 4 Cismaşiu, Corneliu 3 Cao, Toan Duc 3 Smith, David Lloyd 2 Bussamra, Flávio L. S. 2 Castro, L. M. S. Santos 2 Castro, Luís Manuel Santos 2 Cismaşiu, Ildi 2 Cuong, Pham Tuan 2 Faria, Rui 2 Ribeiro Pereira, E. M. B. 2 Toma, Marina 1 Azenha, Miguel 1 de Mattos Pimenta, Paulo 1 Fowkes, Neville Donald 1 Leitão, Vitor Manuel Azevedo 1 Stacey, Richard 1 Virtuoso, Francisco Baptista Esteves all top 5 Serials 14 International Journal for Numerical Methods in Engineering 7 Computer Assisted Mechanics and Engineering Sciences 6 Computer Methods in Applied Mechanics and Engineering 5 Computers and Structures 3 Computational Mechanics 2 International Journal of Solids and Structures 2 Solid Mechanics Archives. Solid Mechanics Division, University of Waterloo 2 Finite Elements in Analysis and Design 1 Journal of the Mechanics and Physics of Solids 1 Meccanica 1 European Journal of Mechanics. A. Solids 1 Journal de Mécanique Théorique et Appliquée 1 International Journal of Computational Methods all top 5 Fields 54 Mechanics of deformable solids (74-XX) 9 Numerical analysis (65-XX) 5 Operations research, mathematical programming (90-XX) 4 Fluid mechanics (76-XX) 1 Partial differential equations (35-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Integral transforms, operational calculus (44-XX) 1 Classical thermodynamics, heat transfer (80-XX) 1 Geophysics (86-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 42 Publications have been cited 213 times in 102 Documents Cited by ▼ Year ▼ Formulation of elastostatic hybrid-Trefftz stress elements. Zbl 0991.74077Teixeira de Freitas, J. A. 20 1998 Non-conventional formulations for the finite element method. Zbl 0946.74068Teixeira de Freitas, J. A.; Moitinho de Almeida, J. P.; Ribeiro Pereira, E. M. B. 18 1999 Hybrid-Trefftz equilibrium model for crack problems. Zbl 0845.73073Teixeira de Freitas, J. A.; Ji, Z.-Y. 16 1996 Hybrid-Trefftz finite element formulation for simulation of singular stress fields. Zbl 0842.73067Teixeira de Freitas, J. A.; Ji, Z.-Y. 12 1996 Continuity conditions for finite element analysis of solids. Zbl 0825.73828Moitinho de Almeida, J. P.; Teixeira de Freitas, J. A. 10 1992 Three-dimensional hybrid-Trefftz stress elements. Zbl 0960.74069Teixeira de Freitas, J. A.; Bussamra, F. L. S. 9 2000 Hybrid finite element formulations for elastodynamic analysis in the frequency domain. Zbl 0963.74068Teixeira de Freitas, J. A. 9 1999 Duality and symmetry in mixed integral methods of elastostatics. Zbl 0679.73041Teixeira de Freitas, J. A. 8 1989 Hybrid-Trefftz stress and displacement elements for axisymmetric incompressible biphasic media. Zbl 1229.74142de Freitas, J. A. Teixeira; Toma, M. 7 2009 Hybrid-Trefftz stress elements for elastoplasticity. Zbl 0951.74072Teixeira de Freitas, J. A.; Wang, Z. M. 7 1998 Hybrid-Trefftz displacement element for spectral analysis of bounded and unbounded media. Zbl 1087.74642Teixeira de Freitas, J. A.; Cismaşiu, C. 7 2003 Numerical implementation of hybrid-Trefftz displacement elements. Zbl 1048.74594Teixeira de Freitas, J. A.; Cismaşiu, C. 7 1999 Mixed finite element solution of time-dependent problems. Zbl 1194.74495de Freitas, J. A. Teixeira 7 2008 Hybrid-Trefftz displacement element for poroelastic media. Zbl 1334.74034de Freitas, J. A. Teixeira; Moldovan, I. D.; Cismaşiu, C. 6 2011 Mixed finite element formulation for the solution of parabolic problems. Zbl 1101.74367Teixeira de Freitas, J. A. 6 2002 Hybrid-Trefftz displacement and stress elements for elastodynamic analysis in the frequency domain. Zbl 0969.74590Teixeira de Freitas, João António 5 1997 A kinematic model for plastic limit analysis of solids by the boundary integral method. Zbl 0745.73008Teixeira de Freitas, J. A. 5 1991 Elastic wave propagation in unsaturated porous media using hybrid-Trefftz stress elements. Zbl 1352.74111Moldovan, I. D.; Cao, T. D.; De Freitas, J. A. Teixeira 4 2014 Hybrid-Trefftz finite elements for biphasic elastostatics. Zbl 1282.74023Moldovan, I. D.; Cao, T. D.; Teixeira de Freitas, J. A. 4 2013 Shape optimization with hybrid-Trefftz displacement elements. Zbl 1112.74542Teixeira de Freitas, J. A.; Cismasiu, I. 4 2002 Wavelets in hybrid-mixed stress elements. Zbl 1029.74043Castro, Luís Manuel Santos; Teixeira de Freitas, João António 4 2001 Hybrid-Trefftz stress element for bounded and unbounded poroelastic media. Zbl 1217.74137Teixeira de Freitas, J. A.; Moldovan, I. D. 4 2011 Hybrid-Trefftz stress elements for incompressible biphasic media. Zbl 1171.74457de Freitas, J. A. Teixeira; Toma, M. 3 2009 Hybrid-Trefftz displacement finite elements for elastic unsaturated soils. Zbl 1359.74427Moldovan, Ionuţ Dragoş; Cao, Toan Duc; De Freitas, João António Teixeira 3 2014 A quadrilateral hybrid stress element for Mindlin plates based on incompatible displacements. Zbl 0796.73059Dong, Y.-F.; Teixeira de Freitas, J. A. 3 1994 The hybrid stress model for Mindlin-Reissner plates based on a stress optimization condition. Zbl 0773.73086Dong, Y. F.; Wu, C. C.; Teixeira de Freitas, J. A. 3 1993 A boundary integral Trefftz formulation with symmetric collocation. Zbl 0994.74079de Freitas, J. A. T.; Leitão, V. M. A. 3 2000 Time integration and the Trefftz method. I: First-order and parabolic problems. Zbl 1136.74387Teixeira de Freitas, João A. 2 2003 Application of the Mathieu series to the boundary integral method. Zbl 0775.73034Teixeira de Freitas, J. A.; Ribeiro Pereira, E. M. B. 2 1991 Digital interpolation in mixed finite element structural analysis. Zbl 0771.73084Teixeira de Freitas, J. A.; Castro, L. M. Santos 2 1992 Modelling of cement hydration in concrete structures with hybrid finite elements. Zbl 1297.80010De Freitas, J. A. Teixeira; Cuong, P. T.; Faria, Rui; Azenha, Miguel 2 2013 Finite element solutions with Walsh series and wavelets. Zbl 0977.74576Teixeira de Freitas, J. A.; Santos Castro, L. M. S. 1 1997 Modeling of cement hydration in high performance concrete structures with hybrid finite elements. Zbl 1352.74117Teixeira de Freitas, J. A.; Cuong, P. T.; Faria, Rui 1 2015 Hybrid-Trefftz stress and displacement elements for dynamic analysis of bounded and unbounded saturated porous media. Zbl 1421.74099Moldovan, Ionuţ D.; Teixeira de Freitas, João A. 1 2008 Piecewise-linear elastic-plastic stress-strain relations. Zbl 0817.73014Teixeira de Freitas, J. A. 1 1990 Time integration and the Trefftz method. II: Second-order and hyperbolic problems. Zbl 1136.74388Teixeira de Freitas, João A. 1 2003 Plastic straining, unstressing and branching in large displacement perturbation analysis. Zbl 0547.73067Teixeira De Freitas, J. A. 1 1984 Existence, uniqueness and stability of elastoplastic solutions in the presence of large displacements. Zbl 0567.73049Teixeira de Freitas, J. A.; Smith, D. L. 1 1984 An efficient simplex method for the limit analysis of structures. Zbl 0573.73038Teixeira de Freitas, J. A. 1 1985 Mixed and hybrid symmetric formulations for the boundary integral method. Zbl 0701.73072Teixeira de Freitas, J. A. 1 1990 Hybrid-mixed finite element elastoplastic analysis based on Walsh and wavelet interpolation. Zbl 1071.74695Castro, L. M. S. Santos; Teixeira de Freitas, J. A. 1 1996 Hybrid-Trefftz stress elements for three-dimensional elastoplasticity. Zbl 0990.74060Bussamra, Flávio L. S.; de Mattos Pimenta, Paulo; Teixeira de Freitas, João A. 1 2001 Modeling of cement hydration in high performance concrete structures with hybrid finite elements. Zbl 1352.74117Teixeira de Freitas, J. A.; Cuong, P. T.; Faria, Rui 1 2015 Elastic wave propagation in unsaturated porous media using hybrid-Trefftz stress elements. Zbl 1352.74111Moldovan, I. D.; Cao, T. D.; De Freitas, J. A. Teixeira 4 2014 Hybrid-Trefftz displacement finite elements for elastic unsaturated soils. Zbl 1359.74427Moldovan, Ionuţ Dragoş; Cao, Toan Duc; De Freitas, João António Teixeira 3 2014 Hybrid-Trefftz finite elements for biphasic elastostatics. Zbl 1282.74023Moldovan, I. D.; Cao, T. D.; Teixeira de Freitas, J. A. 4 2013 Modelling of cement hydration in concrete structures with hybrid finite elements. Zbl 1297.80010De Freitas, J. A. Teixeira; Cuong, P. T.; Faria, Rui; Azenha, Miguel 2 2013 Hybrid-Trefftz displacement element for poroelastic media. Zbl 1334.74034de Freitas, J. A. Teixeira; Moldovan, I. D.; Cismaşiu, C. 6 2011 Hybrid-Trefftz stress element for bounded and unbounded poroelastic media. Zbl 1217.74137Teixeira de Freitas, J. A.; Moldovan, I. D. 4 2011 Hybrid-Trefftz stress and displacement elements for axisymmetric incompressible biphasic media. Zbl 1229.74142de Freitas, J. A. Teixeira; Toma, M. 7 2009 Hybrid-Trefftz stress elements for incompressible biphasic media. Zbl 1171.74457de Freitas, J. A. Teixeira; Toma, M. 3 2009 Mixed finite element solution of time-dependent problems. Zbl 1194.74495de Freitas, J. A. Teixeira 7 2008 Hybrid-Trefftz stress and displacement elements for dynamic analysis of bounded and unbounded saturated porous media. Zbl 1421.74099Moldovan, Ionuţ D.; Teixeira de Freitas, João A. 1 2008 Hybrid-Trefftz displacement element for spectral analysis of bounded and unbounded media. Zbl 1087.74642Teixeira de Freitas, J. A.; Cismaşiu, C. 7 2003 Time integration and the Trefftz method. I: First-order and parabolic problems. Zbl 1136.74387Teixeira de Freitas, João A. 2 2003 Time integration and the Trefftz method. II: Second-order and hyperbolic problems. Zbl 1136.74388Teixeira de Freitas, João A. 1 2003 Mixed finite element formulation for the solution of parabolic problems. Zbl 1101.74367Teixeira de Freitas, J. A. 6 2002 Shape optimization with hybrid-Trefftz displacement elements. Zbl 1112.74542Teixeira de Freitas, J. A.; Cismasiu, I. 4 2002 Wavelets in hybrid-mixed stress elements. Zbl 1029.74043Castro, Luís Manuel Santos; Teixeira de Freitas, João António 4 2001 Hybrid-Trefftz stress elements for three-dimensional elastoplasticity. Zbl 0990.74060Bussamra, Flávio L. S.; de Mattos Pimenta, Paulo; Teixeira de Freitas, João A. 1 2001 Three-dimensional hybrid-Trefftz stress elements. Zbl 0960.74069Teixeira de Freitas, J. A.; Bussamra, F. L. S. 9 2000 A boundary integral Trefftz formulation with symmetric collocation. Zbl 0994.74079de Freitas, J. A. T.; Leitão, V. M. A. 3 2000 Non-conventional formulations for the finite element method. Zbl 0946.74068Teixeira de Freitas, J. A.; Moitinho de Almeida, J. P.; Ribeiro Pereira, E. M. B. 18 1999 Hybrid finite element formulations for elastodynamic analysis in the frequency domain. Zbl 0963.74068Teixeira de Freitas, J. A. 9 1999 Numerical implementation of hybrid-Trefftz displacement elements. Zbl 1048.74594Teixeira de Freitas, J. A.; Cismaşiu, C. 7 1999 Formulation of elastostatic hybrid-Trefftz stress elements. Zbl 0991.74077Teixeira de Freitas, J. A. 20 1998 Hybrid-Trefftz stress elements for elastoplasticity. Zbl 0951.74072Teixeira de Freitas, J. A.; Wang, Z. M. 7 1998 Hybrid-Trefftz displacement and stress elements for elastodynamic analysis in the frequency domain. Zbl 0969.74590Teixeira de Freitas, João António 5 1997 Finite element solutions with Walsh series and wavelets. Zbl 0977.74576Teixeira de Freitas, J. A.; Santos Castro, L. M. S. 1 1997 Hybrid-Trefftz equilibrium model for crack problems. Zbl 0845.73073Teixeira de Freitas, J. A.; Ji, Z.-Y. 16 1996 Hybrid-Trefftz finite element formulation for simulation of singular stress fields. Zbl 0842.73067Teixeira de Freitas, J. A.; Ji, Z.-Y. 12 1996 Hybrid-mixed finite element elastoplastic analysis based on Walsh and wavelet interpolation. Zbl 1071.74695Castro, L. M. S. Santos; Teixeira de Freitas, J. A. 1 1996 A quadrilateral hybrid stress element for Mindlin plates based on incompatible displacements. Zbl 0796.73059Dong, Y.-F.; Teixeira de Freitas, J. A. 3 1994 The hybrid stress model for Mindlin-Reissner plates based on a stress optimization condition. Zbl 0773.73086Dong, Y. F.; Wu, C. C.; Teixeira de Freitas, J. A. 3 1993 Continuity conditions for finite element analysis of solids. Zbl 0825.73828Moitinho de Almeida, J. P.; Teixeira de Freitas, J. A. 10 1992 Digital interpolation in mixed finite element structural analysis. Zbl 0771.73084Teixeira de Freitas, J. A.; Castro, L. M. Santos 2 1992 A kinematic model for plastic limit analysis of solids by the boundary integral method. Zbl 0745.73008Teixeira de Freitas, J. A. 5 1991 Application of the Mathieu series to the boundary integral method. Zbl 0775.73034Teixeira de Freitas, J. A.; Ribeiro Pereira, E. M. B. 2 1991 Piecewise-linear elastic-plastic stress-strain relations. Zbl 0817.73014Teixeira de Freitas, J. A. 1 1990 Mixed and hybrid symmetric formulations for the boundary integral method. Zbl 0701.73072Teixeira de Freitas, J. A. 1 1990 Duality and symmetry in mixed integral methods of elastostatics. Zbl 0679.73041Teixeira de Freitas, J. A. 8 1989 An efficient simplex method for the limit analysis of structures. Zbl 0573.73038Teixeira de Freitas, J. A. 1 1985 Plastic straining, unstressing and branching in large displacement perturbation analysis. Zbl 0547.73067Teixeira De Freitas, J. A. 1 1984 Existence, uniqueness and stability of elastoplastic solutions in the presence of large displacements. Zbl 0567.73049Teixeira de Freitas, J. A.; Smith, D. L. 1 1984 all cited Publications top 5 cited Publications all top 5 Cited by 121 Authors 17 Teixeira de Freitas, João António 10 Moldovan, Ionuţ Dragoş 8 Li, Zi-Cai 7 Sze, Kam-Yim 6 Lee, Ming-Gong 6 Moitinho de Almeida, José Paulo 5 Qin, Qinghua 4 Cen, Song 4 Cismaşiu, Ildi 4 Maunder, Edward Anthony Ward 4 Ooi, Ean Tat 4 Young, Lih-Jier 3 Almeida Pereira, O. J. B. 3 Cen, Zhangzhi 3 Chu, Po-Chun 3 Kaczmarczyk, Łukasz 3 Li, Chenfeng 3 Liu, Yinghua 3 Mackerle, Jaroslav 3 Pearce, Chris J. 3 Pimenta, Paulo M. 3 Shang, Yan 3 Zhang, Xiaofeng 2 Bendea, Elena Daniela 2 Castro, Luís Manuel Santos 2 Chen, Mengcheng 2 Climent, Natàlia 2 Cuong, Pham Tuan 2 Deckers, Elke 2 Desmet, Wim 2 Faria, Rui 2 Freitas, J. A. T. 2 Huang, Hung-Tsai 2 Leitão, Vitor Manuel Azevedo 2 Pereira, E. M. B. R. 2 Rajendran, Sellakkutti 2 Silva, César M. 2 Tiago, Carlos M. 2 Tin-Loi, Francis 2 Toma, Marina 2 Vandepitte, Dirk 2 Wang, Haitao 2 Wang, Hui 2 Yang, Zhenjun 2 Yeo, Joon Hock 1 Ai, Zhiyong 1 Azenha, Miguel 1 Bao, Yi 1 Bicanic, Nenad 1 Boroomand, Bijan 1 Bui, Tinh Quoc 1 Bussamra, Flávio L. S. 1 Camotim, Dinar 1 Cao, Changyong 1 Cao, Toan Duc 1 Chen, Wanji 1 Chen, Xuefeng 1 Cheung, Yau Kai 1 Chiang, John Y. 1 Cismaşiu, Corneliu 1 Codina, Ramon 1 Costa, Jorge C. 1 Coutinho, Ana 1 Cui, Yuhong 1 de Souza Neto, Eduardo Alberto 1 de Souza, Charlton Okama 1 Dhanasekar, Manicka 1 Draščić Ban, Biserka 1 Fabra, Arnau 1 Fan, Hui 1 Fujikubo, Masahiko 1 Gomes Correia, António 1 Grassl, Peter 1 He, Zhengjia 1 Huang, Jun-Bin 1 Izzuddin, Bassam A. 1 Jia, Hongen 1 Jonckheere, Stijn 1 Khelil, Abdelmajid 1 Langrand, Bertrand 1 Leconte, Nicolas 1 Li, Bing 1 Li, Hongguang 1 Li, Kaitai 1 Liew, Kim Meow 1 Markiewicz, Éric 1 Mohyud-Din, Syed Tauseef 1 Moosavi, M. R. 1 Nakhaeei, A. 1 Nguyen, Thanh Tung 1 Noormohammadi, Nima 1 Novák, Jan 1 Okada, Hiroshi 1 Okazawa, Shigenobu 1 Pang, Jong-Shi 1 Piltner, Reinhard 1 Ping, Xuecheng 1 Proença, Sergio Persival Baroncini 1 Radu, Lucian 1 Ritto-Corrêa, Manuel C. ...and 21 more Authors all top 5 Cited in 24 Serials 24 International Journal for Numerical Methods in Engineering 22 Computer Methods in Applied Mechanics and Engineering 15 Engineering Analysis with Boundary Elements 9 Computational Mechanics 5 Engineering Computations 4 Communications in Numerical Methods in Engineering 3 Journal of Computational and Applied Mathematics 2 International Journal for Numerical Methods in Biomedical Engineering 1 Acta Mechanica 1 Computers & Mathematics with Applications 1 International Journal of Solids and Structures 1 International Journal of Systems Science 1 Results in Mathematics 1 Applied Numerical Mathematics 1 Finite Elements in Analysis and Design 1 Applied Mathematical Modelling 1 Mathematical Problems in Engineering 1 European Journal of Mechanics. A. Solids 1 Archives of Computational Methods in Engineering 1 Sādhanā 1 Journal of Computational Acoustics 1 Acta Mechanica Sinica 1 Frontiers of Mathematics in China 1 Advances in Mathematical Physics all top 5 Cited in 13 Fields 88 Mechanics of deformable solids (74-XX) 32 Numerical analysis (65-XX) 10 Fluid mechanics (76-XX) 8 Partial differential equations (35-XX) 2 Operations research, mathematical programming (90-XX) 1 Combinatorics (05-XX) 1 Real functions (26-XX) 1 Special functions (33-XX) 1 Sequences, series, summability (40-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Integral transforms, operational calculus (44-XX) 1 Optics, electromagnetic theory (78-XX) 1 Classical thermodynamics, heat transfer (80-XX) Citations by Year