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Mixed stabilized finite element methods in nonlinear solid mechanics: part II: strain localization

Autor
Cervera, M.; Chiumenti, M.; Codina, R.
Tipus d'activitat
Article en revista
Revista
Computer methods in applied mechanics and engineering
Data de publicació
2010-08
Volum
199
Número
37-40
Pàgina inicial
2571
Pàgina final
2589
DOI
https://doi.org/10.1016/j.cma.2010.04.005 Obrir en finestra nova
URL
http://linkinghub.elsevier.com/retrieve/pii/S0045782510001222 Obrir en finestra nova
Resum
This paper deals with the question of strain localization associated with materials which exhibit softening due to tensile straining. A standard local isotropic Rankine damage model with strain-softening is used as exemplary constitutive model. Both the irreducible and mixed forms of the problem are examined and stability and solvability conditions are discussed. Lack of uniqueness and convergence difficulties related to the strong material nonlinearities involved are also treated. From this ana...
Paraules clau
Local damage models, Mesh dependence, Mixed finite elements, Stabilization, Strain localization, Strain softening
Grup de recerca
(MC)2 - Grup de Mecànica Computacional en Medis Continus
(MC)2 - UPC Mecànica de Medis Continus i Computacional
ANiComp - Anàlisi numèrica i computació científica

Participants