Título:
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A mixed stabilized finite element formulation for strain localization analysis
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Autor/a:
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Chiumenti, Michèle; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria; Universitat Politècnica de Catalunya. (MC)2 - Grup de Mecànica Computacional en Medis Continus |
Abstract:
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This work exploits the concept of stabilization techniques to improve the behaviour of either mixed or pu/mixed u/εlinear/linear triangular elements when strain localization analysis is required. Different stabilization methods suitable for either Mode-I or Mode-II structural failure are proposed and compared to check the global stability of the corresponding discrete finite element formulation. Both elasto-J2-plastic and isotropic damage models have been used for the constitutive behaviour of the material. In both cases, exponential softening has been introduced in the post-peak regime. The results obtained do not suffer from spurious mesh-size or mesh-bias dependence, comparing very favorably with those obtained with standard approach. |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures -Fracture mechanics -- Mathematical models -Strain localization -Finite Element Technology -Mixed Stabilized Formulation -Mecànica de fractura -- Models matemàtics |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
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