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    张昭

    • 教授     博士生导师   硕士生导师
    • 主要任职:Professor in Process Mechanics
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:工程力学系
    • 学科:制造工艺力学. 工程力学. 计算力学
    • 办公地点:综合实验1号楼619
    • 联系方式:0411-84708432
    • 电子邮箱:zhangz@dlut.edu.cn

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    The simulation of residual stresses in friction stir welds

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    论文类型:期刊论文

    第一作者:Zhang, Zhao

    通讯作者:Zhang, Z (reprint author), Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

    合写作者:Zhang, Hongwu

    发表时间:2007-05-01

    发表刊物:JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES

    收录刊物:SCIE

    卷号:2

    期号:5

    页面范围:951-964

    ISSN号:1559-3959

    关键字:friction stir welding; residual stress; finite element method; energy dissipation

    摘要:A numerical model is developed to investigate energy dissipations and residual stress distributions in friction stir welds. Results indicate that the maximum longitudinal residual stress can be increased with the increase of the translational velocity of the pin. But the variation of the angular velocity of the pin does not significantly affect the residual stress distributions. Energy dissipation in friction is increased with the increase of the angular velocity of the pin. However, with the increase of the translational velocity of the pin the plastic dissipation of energy is increased and the frictional dissipation is decreased.