Numerical modeling of cyclic mobility based on fuzzy-set concepts in plasticity theory

被引：1
作者：
Bao, Yu [2 ]
Sture, Stein [1 ]
机构：
[1] Univ Colorado, Boulder, CO 80309 USA
[2] Rochester Inst Technol, Dept Civil Engn Technol Environm Management & Saf, Rochester, NY 14623 USA
来源：
COMPUTERS AND GEOTECHNICS | 2011年 / 38卷 / 03期
关键词：
Cyclic mobility; Fuzzy-set plasticity; Soil dilatancy; Constitutive modeling; LIQUEFACTION; EARTHQUAKES; SOILS; SAND;
D O I：
10.1016/j.compgeo.2011.01.001
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In this paper, the application of an efficient, transparent and accurate kinematic-cyclic constitutive model based on the fuzzy-set concepts and incremental plasticity theory is presented to show its capability in modeling cyclic mobility of saturated granular soil. The nature and kinematic mechanism of the membership functions in the fuzzy-set constitutive model are illustrated. The model's capability of modeling soil dilatancy is investigated. Important features of volume change and pore water pressure build-up related to soil cyclic mobility are captured. The formulation of the proposed model is relatively simple and it can be readily implemented in finite element codes. The enhanced fuzzy-set model is capable of simulating ground motion problems particularly related to cyclic mobility, soil liquefaction, and spreading behavior. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：375 / 382
页数：8
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