基于ANSYS/LS-DYNA板材多辊冷弯成型数值模拟  

Study on cold-roll forming simulation based on ANSYS/LS-DYNA

作　　者：杨改云[1] 郭长江[1] 

机构地区：[1]郑州轻工业学院机电工程学院,河南郑州450002

出　　处：《郑州轻工业学院学报（自然科学版）》2010年第4期41-44,共4页Journal of Zhengzhou University of Light Industry:Natural Science

摘　　要：对板材多辊冷弯成型过程进行数值模拟理论探讨及关键技术研究,结果表明:板材多辊冷弯成型过程是一个非线性、大变形的弹塑性变形过程.板材冷弯成型数值模拟时的单元选择主要涉及到沙漏和计算时间问题;接触形式选择不当可能会发生穿透问题从而使计算无法进行.实例证明,轧件板材选用SHELL163壳单元,接触类型选择面面自动接触时,数值模拟很精确,利用ANSYS/LS-DYNA软件进行冷弯成型分析是可行的.The simulation,theories searching and some key technologies in steel multi-roll cold roll forming proless were studied,the results demonstrated that cold-roll forming simulation is geometric nonlinearity,material nonlinearity and contact boundary nonlinearity.In cold-roll simulation,element choice mainly relates to hourglass and calculation time.Calculation should not carry out if contact choice is not suitable.Study showed that steel sheet uses SHELL163 element and automatic surface-to-surface contact,Which is used in an example to certificate that the software of ANSYS/LS-DYNA is workable to simulate cold-roll forming.

关 键 词：冷弯成型 数值模拟 ANSYS/LS-DYNA 

分 类 号：TG302[金属学及工艺—金属压力加工]