刘增利   

Senior Engineer
Supervisor of Master's Candidates

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Paper Publications

Title of Paper:冻土破坏过程的微裂纹损伤区的计算分析

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Date of Publication:2004-12-30

Journal:计算力学学报

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

Volume:21

Issue:6

Page Number:696-700

ISSN No.:1007-4708

Key Words:冻土破坏过程;微裂纹损伤区;计算分析;当量裂纹

Abstract:对冻土破坏过程进行了试验研究,冻土破坏的过程是微裂纹损伤与临界串接的演化过程,确认了冻土微裂纹损伤区的存在,并分别用莫尔准则和最大拉应力准则建立了微裂纹损伤区计算模式.将微裂纹损伤区按缺陷处理并简化为当量裂纹,进行了裂纹尺寸的定量计算,结果表明其尺寸与冻土中初始裂纹尺寸相当,将计算结果与观测结果相比较,误差不超过10%.

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