Abstract
In this contribution, the Desai hierarchical model is extended to the case of 3D elasto-plastic two-phase micropolar continuum. An unconditionally stable implicit Euler backward algorithm for integration of the constitutive relations is developed and presented in detail. The regularizing effect of the introduction of a length parameter to the classical Desai model is demonstrated by means of several case studies of single phase and two-phase porous media.
| Original language | British English |
|---|---|
| Pages (from-to) | 2695-2714 |
| Number of pages | 20 |
| Journal | International Journal of Solids and Structures |
| Volume | 44 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 May 2007 |
Keywords
- Desai hierarchical model
- Implicit Euler integration algorithm
- Micropolar continuum
- Porous medium
- Strain localization
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