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Elastoplastic Modeling of Soils: From Mohr-Coulomb to SIMSAND
Most constitutive models of soils are developed under the framework of elastoplasticity. This chapter presents the step-by-step modeling methodology from Mohr-Coulomb to SIMSAND. First, the experimental phenomena of shear behavior for normally consolidated or loose soils and for overconsolidated or dense soils are presented. Capturing the shear characteristics of soils, the Mohr-Coulomb model is presented to discuss the significance of the model parameters. By implementing nonlinear elasticity, nonlinear plastic hardening, and nonlinear stress–dilatancy, the development of a nonlinear Mohr-Coulomb model is presented. Further considering the critical state feature of soils, the model is extended to the SIMSAND model. For practical purposes, the development of the MATLAB code for simulating triaxial tests using SIMSAND is presented. Finally, some elastoplastic models in the EROSLAB platform are presented for practical applications.
Elastoplastic Modeling of Soils: From Mohr-Coulomb to SIMSAND
Most constitutive models of soils are developed under the framework of elastoplasticity. This chapter presents the step-by-step modeling methodology from Mohr-Coulomb to SIMSAND. First, the experimental phenomena of shear behavior for normally consolidated or loose soils and for overconsolidated or dense soils are presented. Capturing the shear characteristics of soils, the Mohr-Coulomb model is presented to discuss the significance of the model parameters. By implementing nonlinear elasticity, nonlinear plastic hardening, and nonlinear stress–dilatancy, the development of a nonlinear Mohr-Coulomb model is presented. Further considering the critical state feature of soils, the model is extended to the SIMSAND model. For practical purposes, the development of the MATLAB code for simulating triaxial tests using SIMSAND is presented. Finally, some elastoplastic models in the EROSLAB platform are presented for practical applications.
Elastoplastic Modeling of Soils: From Mohr-Coulomb to SIMSAND
Yin, Zhen-Yu (author) / Hicher, Pierre-Yves (author) / Jin, Yin-Fu (author)
Practice of Constitutive Modelling for Saturated Soils ; Chapter: 5 ; 121-176
2020-09-12
56 pages
Article/Chapter (Book)
Electronic Resource
English
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