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The elastoplastic Cosserat continuum model and numerical simulation of strain localization *
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tang, Hongxiang Hu, Zhao-Long |
| Copyright Year | 2013 |
| Abstract | The elastoplastic Cosserat continuum models for both two and three dimensional pressure-dependent materials are presented in this paper. The non-associated Drucker-Prager yield criterion is particularly considered. The size effects of a cantilever beam, the mesh-independent solution of a shear structure, the strain localization failure due to strain softening in excavation and the strain localization failure due to material dilatancy in retaining structure are studied by the developed model with corresponding finite element methods. Numerical results illustrate that the present finite element methods based on the proposed Cosserat continuum models are capable of reflecting the size effects, ensuring mesh-independent solution, preserving the well-posedness of the boundary value problem characterized by the strain localization due to strain softening and material dilatancy and simulating the entire progressive failure process occurring in engineering structures. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.i-asem.org/publication_conf/asem13/191.T2B.5.MS528_858F.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
