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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:力学与航空航天学院
    • 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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    基于三维蒙特卡洛方法的搅拌摩擦焊晶粒生长模拟

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    第一作者:张昭

    通讯作者:胡超平,吴奇

    发表时间:2022-10-10

    发表刊物:塑性工程学报

    所属单位:运载工程与力学学部

    期号:3

    页面范围:231-236

    ISSN号:1007-2012

    摘要:The 3D fluid turbulence model was used to simulate the friction stir welding process.Three-dimensional Monte Carlo model was then applied to simulate the grain growth in the welding zone.The comparison with experimental data shows the validity of the proposed model.The grain evolution in the stirring zone was simulated by combination of the movements of material particles and temperature histories in the fluid model and the grain growth model.Results indicate that the grain size at advancing side is larger than the retreating side,which agrees well with the experimental observations.The grain structure in the stirring zone can be three dimensionally revealed,which is hardly directly revealed in experiments.This work can be beneficial to the quantitative understanding of the morphology and sizes of the grains in stirring zone in friction stir welding.

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