Method of applying the radial return method to the anisotropic hardening rule of plasticity to sheet metal forming processes
    1.
    发明授权
    Method of applying the radial return method to the anisotropic hardening rule of plasticity to sheet metal forming processes 失效
    将径向回弹法应用于钣金成型工艺的可塑性各向异性硬化规律的方法

    公开(公告)号:US06205366B1

    公开(公告)日:2001-03-20

    申请号:US09396095

    申请日:1999-09-14

    IPC分类号: G06F1900

    CPC分类号: B21D22/20

    摘要: A method (100) for predicting distortion of a sheet metal during a sheet forming process to form the sheet metal into a part. The method (100) of the present invention is for use with a computer including memory and sheet forming tools. The method (100) comprises applying (104-116) the radial return method to compute the total stress for the anisotropic hardening rule of Mroz. The method (100) of the present invention does not divide a given strain increment into hundreds of subintervals as long as the movement of the center of the active yield surface is along a fixed path. If a break occurs, the given strain increment is divided into a few segments (110).

    摘要翻译: 一种用于在片材成型过程中预测金属板的变形以将金属板形成为一部分的方法(100)。 本发明的方法(100)用于包括存储器和片材成形工具的计算机。 方法(100)包括应用(104-116)径向返回法计算Mroz各向异性硬化规则的总应力。 本发明的方法(100)只要活动收益率表面的中心的移动沿着固定路径,就不将给定的应变增量划分成数百个子区间。 如果发生断裂,给定的应变增量被分成几段(110)。