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    唐世斌

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:土木工程系
    • 学科:岩土工程. 计算力学. 桥梁与隧道工程. 水工结构工程
    • 电子邮箱:tang_shibin@dlut.edu.cn

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    Study on the Thermal Cracking Processes of Composite Subjected to Thermal Loading

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    论文类型:会议论文

    发表时间:2012-10-27

    收录刊物:EI、CPCI-S、Scopus

    卷号:256-259

    期号:PART 1

    页面范围:2867-+

    关键字:Thermal Mismatch Stress; Numerical Modeling; Crack Growth; Heterogeneity

    摘要:A numerical method RFPA-T (Thermal Induced Rock Failure Process Analysis) code is used to study the thermal cracking processes of quasi-brittle materials subjected to high or low temperature. The numerical results indicate that thermal stress concentrating along the interface between the matrix and the embedded grains due to their different coefficient of thermal expansion (CTE). The modeling results indicate that theta-crack is generated during temperature increment as the CTE of the embedded grain is smaller than that of the matrix. However, radial-cracks emerged when the temperature decrease. The results obtained from RFPA-T code show a good agreement with experimental evidence of crack patterns caused by thermal expansion mismatch.