The stress model of the hybrid finite element formulation is applied to the analysis of quasi-static, gradient-dependent elastoplastic structural problems. The finite element approximation consists in the direct estimate of the stress and plastic multiplier fields in the domain of the element and of
โฆ LIBER โฆ
Elastoplastic dynamic analysis with hybrid stress elements
โ Scribed by J. A. Teixeira de Freitas; Z. M. Wang
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 1003 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0029-5981
- DOI
- 10.1002/nme.282
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Based on Hellinger}Reissner functional and with the inclusion both of displacements and stresses, a hybrid stress formulation of dynamic "nite element method is derived in this paper. In this formulation, the displacements are separated into zeroth displacement modes and high-order incompatible dyna