刘增利   

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Supervisor of Master's Candidates

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Paper Publications

Title of Paper:基于动态CT识别的冻土单轴压缩损伤本构模型

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Date of Publication:2005-04-30

Journal:岩土力学

Included Journals:Scopus、EI、PKU、ISTIC、CSCD

Volume:26

Issue:4

Page Number:542-546

ISSN No.:1000-7598

Key Words:冻土;单轴压缩;CT动态测试;损伤本构模型

Abstract:采用连续介质力学与热力学方法,建立了冻土单轴压缩损伤本构模型.以兰州冻结黄土为例,基于冻土单轴压缩动态CT试验,对冻土附加损伤的2个阶段,即塑性损伤和微裂纹扩展损伤分别采用硬化曲线法和动态CT识别方法进行了损伤计算,在此基础上给出了冻土附加损伤与弹性应变的对应关系,建立了基于试验的冻土损伤演化方程,并进行了有效应力的计算.

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