. "RIV/61388998:_____/09:00329868!RIV10-AV0-61388998" . "Technical University of Catalonia" . "3"^^ . . "yield surface; convexity; directional hardening"@en . "4"^^ . . . "Convexity of Models with Directional Distortional Hardening and its Computational Implication" . . "P(GA101/09/1630), Z(AV0Z20760514)" . . . . "Explicit constraints on elastic-plastic material parameters were derived to guarantee computional model\u00B4s convexity in the presence of directional distortional hardening."@en . . . . . "Convexity of Models with Directional Distortional Hardening and its Computational Implication"@en . . "2009-09-02+02:00"^^ . "Explicit constraints on elastic-plastic material parameters were derived to guarantee computional model\u00B4s convexity in the presence of directional distortional hardening." . "Convexity of Models with Directional Distortional Hardening and its Computational Implication"@en . . . "Feigenbaum, H. P." . . "Ple\u0161ek, Ji\u0159\u00ED" . "Dafalias, Z." . . . "978-84-96736-69-6" . "[DAB81C54E42D]" . "308316" . "Convexity of Models with Directional Distortional Hardening and its Computational Implication" . "Barcelona" . "Computational Plasticity X. Fundamentals and Applications" . "Barcelona" . "1"^^ . "RIV/61388998:_____/09:00329868" .