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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 finite element simulation of the friction stir welding process

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    论文类型:期刊论文

    第一作者:Zhang, HW

    通讯作者:Zhang, HW (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, Z,Chen, JT

    发表时间:2005-08-25

    发表刊物:MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

    收录刊物:SCIE、EI、Scopus

    卷号:403

    期号:1-2

    页面范围:340-348

    ISSN号:0921-5093

    关键字:friction stir welding; finite element simulation; residual stress; material flow; equivalent plastic strain

    摘要:Solid mechanics-based finite element models and computational procedures are developed to study the flow patterns and the residual stresses in frictional stir welding (FSW). Two-dimensional results of the material flow patterns and the residual stresses are presented. The flow of metal during FSW is investigated using tracer particles. It is shown that the flows on the advancing side and retreating side are different. After several rotations the material which is rotating around the nib sloughs off in its wake of the pin, primarily on the advancing side. The residual stresses of the welded plate are investigated in this analysis. The distribution of the longitudinal residual stress along the direction perpendicular to the welding line is a double feature curve. With the increase of the translational velocity, the maximum longitudinal residual stress can be increased. (c) 2005 Elsevier B.V. All rights reserved.