A model for work-hardening plasticity and failure of concrete under multiaxial stresses
β Scribed by R.J. Torrent; E.N. Dvorkin; A.M. Alvaredo
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 516 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0008-8846
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β¦ Synopsis
A constitutive model aimed at describing the actual behaviour of concrete under multiaxial stresses, from initial yielding up to failure, is presented. The model exhibitS closed surfaces for initial yielding and subsequent loading stages, whilst the failure surface is openended along the negative hydrostatic axis. The traces of the surfaces on any deviatoric plane are smooth and convex curves, particularly suitable for numerical applications. The results of the model show good agreement with experimental data.
π SIMILAR VOLUMES
Several computational aspects of the fracture energy based softening plasticity model for plain concrete are considered. A need for a more robust stress return strategy is identified, as the basic closest point projection algorithm leads to regions of nonconvergence, associated with zones of high cu