Numerical integration and FE implementation of a hypoplastic constitutive model |
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| Authors: | " target="_blank">Shun Wang Wei Wu Chong Peng Xuzhen He Deshan Cui |
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| Institution: | 1.Institut für Geotechnik,Universit?t für Bodenkultur Wien,Vienna,Austria;2.Faculty of Engineering,China University of Geosciences,Wuhan,China |
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| Abstract: | Hypoplastic constitutive equation based on nonlinear tensor functions possesses a failure surface but no yield surface. In this paper, we consider the numerical integration and FE implementation of a simple hypoplastic constitutive equation. The accuracy of several integration methods, including implicit and explicit methods, is examined by performing a set of triaxial compression tests. Adaptive explicit schemes show the best performance. In addition, the stress drift away from the failure surface is corrected with a predictor-corrector scheme, which is verified by two boundary value problems, i.e. rigid footing tests and slope stability. |
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