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Modeling the viscous behavior of frozen soil with hypoplasticity
被引:33
|作者:
Xu, Guofang
[1
]
Wu, Wei
[1
]
Qi, Jilin
[2
]
机构:
[1] Univ Nat Resources & Life Sci, Inst Geotech Engn, A-1180 Vienna, Austria
[2] Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn, Beijing 100044, Peoples R China
基金:
中国国家自然科学基金;
奥地利科学基金会;
关键词:
rate dependence;
creep;
hypoplasticity;
constitutive model;
frozen soil;
WEAK TURBULENT MOTIONS;
GRANULAR DENSE FLOW;
CONSTITUTIVE MODEL;
CLOSURE MODELS;
DEFORMATION;
SAND;
STRENGTH;
D O I:
10.1002/nag.2516
中图分类号:
P5 [地质学];
学科分类号:
0709 ;
081803 ;
摘要:
This paper presents a hypoplastic constitutive model for the viscous behavior of frozen soil. The model is composed of a 'solid' part and a 'fluid' part. The solid part is based on the extended hypoplastic model, and the fluid part is dependent on the second time derivative of strain. The performance of the model is demonstrated by simulating some uniaxial compression tests at different strain rates. Moreover, the model can describe in a unified way the three stages of typical creep tests, that is, primary, secondary, and tertiary stage. Copyright (C) 2016 John Wiley & Sons, Ltd.
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页码:2061 / 2075
页数:15
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