Fe2-homogenization of micromorphic elasto-plastic materials
| Autor: | Clasen, Heiko, Hirschberger, C. Britta, Korelc, Joze, Wriggers, Peter |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Finite element method
Plasticity Plasticity -- Mathematical models Plasticitat Elements finits Mètode dels Finite Plasticity Micromorphic Continua Size–Effects FE2 Homogenization Plasticitat -- Models matemàtics Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits [Àrees temàtiques de la UPC] |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | In this work, a homogenization strategy for a micromorphic–type inelastic material is presented. In the spirit of FE2, a representative volume element is attached to each macroscopic quadrature point. Due to the inherent length scale of the micromorphic continuum, size effects for inelastic behavior are obtained on RVE–level. A focus is placed on the computation of the homogenized algorithmic tangent. It is determined via sensitivity analyses with respect to the boundary conditions imposed on the RVE. Following this procedure, costly single–scale computations with dense meshes can be replaced by a robust homogenization approach with optimal convergence rates. |
| Databáze: | OpenAIRE |
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