An innovative procedure to improve integration algorithm for modified Cam-Clay plasticity model. (August 2020)

• Record Type: Journal Article
• Authors: Sanei, Manouchehr; Duran, Omar; Devloo, Philippe R.B.; Santos, Erick S.R.
• Is Part Of: Computers and geotechnics. Volume 124(2020)
• Publication Date: 2020-08
• Subjects: Critical state elastoplasticity -- Modified Cam-Clay -- Integration algorithm -- Return mapping -- Rotated Haigh-Westergaard space; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2020.103604
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: An innovative numerical scheme to improve the integration algorithm for critical state elastoplasticity is presented and detailed with special consideration to the modified Cam-Clay model. The scheme is based on a rotation of the principal stresses and represents the elastoplastic model in a rotated Haigh-Westergaard space. Such an approach allows the calculation of modified Cam-Clay tobe computationally stable and easy to implement. The validity of the proposed scheme is verified by comparing the numerical results with analytic solutions.