An open-source unconstrained stress updating algorithm for the modified Cam-clay model

This paper presents an unconstrained stress updating algorithm for a critical state plastic model of clay soil, where the loading/unloading estimations and the consideration of the stress behaviour transition from elasticity to plasticity can be bypassed by using the Fischer–Burmeister smoothing fun...

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Bibliographic Details
Published in:	Computer methods in applied mechanics and engineering Vol. 390; p. 114356
Main Authors:	Zhou, Xin, Lu, Dechun, Zhang, Yaning, Du, Xiuli, Rabczuk, Timon
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 15.02.2022 Elsevier BV
Subjects:	Algorithms Clay soils Computational efficiency Computing time Consistent tangent operator Constitutive equations Constitutive model integration Constitutive relationships Cyclic loads Finite element method Mathematical models Modified Cam-clay model Newton methods Operators (mathematics) Robustness (mathematics) Smoothing Smoothing function Source code Trust region method UMAT Modified Cam-clay model Smoothing function UMAT Constitutive model integration Consistent tangent operator Trust region method
ISSN:	0045-7825, 1879-2138
Online Access:	Get full text
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