基于Python的ABAQUS二次开发及在板料快速冲压成形模拟中的应用

Study and development on the application of ABAQUS in the sheet metal rapid forming simulation based on Python

采用Python脚本语言对ABAQUS的前处理模块进行二次开发,讨论了Python脚本在ABAQUS二次开发中的作用和调用过程,提出了程序开发的思路及一般步骤。通过开发针对板料快速冲压成形模拟的Python脚本程序,使用户能够根据压力机实际参数创建真实加载速度幅值曲线。结果表明,所开发的程序界面友好,可操作性强。通过典型冲压成形实例,比较分析结点滑动速度和结点运动速度曲线,证明了有限元软件模拟的真实加载速度可以反映板料和模具之间的滑动速度,为后续的实际试验提供分析依据。

Python scripting language was used for pre-processing module of ABAQUS for secondary development, the role of Python script and the call process was discussed in the ABAQUS secondary development, the development of ideas and general steps was put forward. Through the Python script for the sheet metal rapid forming simulation, an effective solution was proposed to allow users creating true loading rate amplitude according actual press parameters. The results showed that the procedure was friendly and feasible. Through a typical Stamping example, compared and analyzed the node slip velocity curve and translational velocity curve. It proved the truth that the true loading rate simulating by Finite element software can reflect the slip velocity between sheet metal and die, providing the basis for the follow-up analysis in actual testing.