An Improved Kinematic Hardening Bounding Surface Model for Saturated Clay

被引：1
|
作者：
Yao H. [1 ,2 ]
Wang J. [1 ,2 ]
机构：
[1] State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin
[2] Geotechnical Engineering Institute, Tianjin University, Tianjin
来源：
Wang, Jianhua (tdwjh@eyou.com) | 1600年 / Tianjin University卷 / 50期
基金：
中国国家自然科学基金;
关键词：
Bounding surface equation; Cyclic shakedown; Saturated clay; Wave loading;
D O I：
10.11784/tdxbz201609034
中图分类号：
学科分类号：
摘要：
An improved bounding surface model was developed based on the kinematic hardening rule for predicting the cyclic shakedown behavior of saturated clay under wind and wave loading. In the improved model, the hardening rule with movable hardening center and bounding surface was adopted, so that the anisotropy of soil induced by cyclic loading was taken into account;the stress at the left point of ellipse was suggested as kinematic hardening variable, and a new bounding surface equation was established to solve the problem that traditional bounding equation and hardening rule fail to match each other;the shape parameter was introduced to increase the flexibility of the model;a detailed plastic modulus interpolation method was presented according to the evolution of bounding surface for predicting the cyclic shakedown behavior of saturated clay under low stress levels. The rationality of this model is verified by predicting the accumulative deviator strain-cyclic times relationship of saturated clay under different consolidation stresses and cyclic stress levels, and the validity is further verified by comparing the simulation and experimental data. © 2017, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
引用
收藏
页码：1329 / 1336
页数：7
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