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Numerical integration and FE implementation of a hypoplastic constitutive model
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.
Numerical integration and FE implementation of a hypoplastic constitutive model
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.
Numerical integration and FE implementation of a hypoplastic constitutive model
Wang, Shun (author) / Wu, Wei (author) / Peng, Chong (author) / He, Xuzhen (author) / Cui, Deshan (author)
Acta Geotechnica ; 13 ; 1265-1281
2018-06-29
17 pages
Article (Journal)
Electronic Resource
English
Finite element analysis , Hypoplastic models , Numerical integration , Stress correction , Substepping method Engineering , Geoengineering, Foundations, Hydraulics , Solid Mechanics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics
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