Elastoplastic Modeling of Clayey Soils: From MCC to ASCM

Zhen-Yu Yin (), Pierre-Yves Hicher () and Yin-Fu Jin ()
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Zhen-Yu Yin: The Hong Kong Polytechnic University, Department of Civil and Environmental Engineering
Pierre-Yves Hicher: Ecole Centrale de Nantes, Research Institute in Civil and Mechanical Engineering UMR CNRS GeM
Yin-Fu Jin: The Hong Kong Polytechnic University, Department of Civil and Environmental Engineering

Chapter Chapter 6 in Practice of Constitutive Modelling for Saturated Soils, 2020, pp 177-228 from Springer

Abstract: Abstract This chapter presents a step-by-step modeling methodology for clayey soils from the modified Cam-clay model (MCC) to the anisotropic structured clay model (ASCM). First, the experimental behavior of clayey soils under compression is presented. Then, a typical MCC model capturing both the shear and compression characteristics of clayey soils is presented, and the significance of the model parameters is discussed. By implementing the nonlinear stress–strain relationship through the bounding surface method, the effect of structures on plasticity (i.e., anisotropic yield surface, cementation/bonding, and adhesive cohesion) and the effect of structures on elasticity, the development of the ASCM model is presented. For practical purposes, the development of the MATLAB code for simulating triaxial tests using ASCM is presented. Finally, the MCC and ASCM models in the EROSLAB platform are presented for practice.

Date: 2020
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DOI: 10.1007/978-981-15-6307-2_6

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