Unified modeling of the monotonic and cyclic behaviors of sand and clay  

作　　者：Yinfu Jin Zhenyu Yin Dongmei Zhang Hongwei Huang 

机构地区：[1]Department of Geotechnical Engineering, Tongji University [2]Department of Civil Engineering, Shanghai Jiao Tong University [3]LUNAM University, Ecole Centrale de Nantes

出　　处：《Acta Mechanica Solida Sinica》2015年第2期111-132,共22页固体力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.41372285);the Research Fund for the Doctoral Program of Higher Education of China(No.20110073120012);Shanghai Pujiang Talent Plan(No.11PJ1405700);the European Community through the program‘People’as part of the Industry-Academia Pathways and Partnerships project CREEP(PIAPP-GA-2011-286397)

摘　　要：In this study, we aim to investigate a unified modeling method for the monotonic and cyclic behaviors of sand and clay. A simple double-yield-surface model, with plastic hardening modulus and dilatancy relation being dependent on density state unlike in existing approaches, is developed by considering the location of the critical state line. The model is used to simulate the drained and undrained tests of various sands and clays under monotonic and cyclic loadings. Prediction results are compared with experimental results, which show that the proposed approach is capable of modeling the monotonic and cyclic behaviors of sand and clay.In this study, we aim to investigate a unified modeling method for the monotonic and cyclic behaviors of sand and clay. A simple double-yield-surface model, with plastic hardening modulus and dilatancy relation being dependent on density state unlike in existing approaches, is developed by considering the location of the critical state line. The model is used to simulate the drained and undrained tests of various sands and clays under monotonic and cyclic loadings. Prediction results are compared with experimental results, which show that the proposed approach is capable of modeling the monotonic and cyclic behaviors of sand and clay.

关 键 词：SAND CLAY constitutive relations PLASTICITY critical state cyclic loading 

分 类 号：TU44[建筑科学—岩土工程]