基于ABAQUS的激光板料成形的数值模拟研究.pdfVIP

　第 27 卷第 3 期 　　　　　　　　　　　　　　 应 　 用 　 激 　 光 Vol . 27 ,No . 3 2007 年 6 月 A P PL I ED LAS ER J une 2007 基于 ABA Q U S 的激光板料成形的数值模拟研究 陈毅彬 , 　周建忠 , 　黄舒 , 　孙月庆 , 　蒋素琴 (江苏大学机械工程学院 ,江苏 镇江 2 120 13) 提要 　激光板料成形技术是一种柔性无模的金属板料成形新工艺 。本文通过对 ABA QU S 有限元软件和激光热应力成形及 激光喷丸成形这两种激光板料成形方式的简要介绍 ,着重分析了 ABA QU S 有限元软件在激光热应力成形和激光喷丸成形数 值模拟方面的应用 ,并对数值模拟中关于载荷定义 、本构关系 、网格划分 、边界条件等关键问题的处理进行了分析 ,且给出了 具体的解决方案 。最后以具体的模拟实例指出 ,ABA QU S 软件为激光板料成形的数值模拟提供了强大的分析平台 ,模拟结果 与实验具有较好的一致性 ,对有效地进行实验具有重要的指导意义 。 关键词 　激光成形 ; 　激光喷丸 ; 　ABA QU S ; 　数值模拟 Study on the Numerical Simulation of Laser Forming of Sheet Metal Based on ABA QUS Code Chen Yibin , 　Zhou J ianzhong , 　Huang Shu , 　Sun Yueqing ( S chool of mechanical eng i nee ri ng , J i angs u Uni vers i ty , Z henJ i ang , J i angs u 2 120 13 , Chi na) Abstract 　Laser forming of sheet metal is a new emerging sheet metal forming p rocess which is flexible and dieless. Laser thermal stress forming (L TF) and laser peen forming (L PF) are the typical application of laser forming in manufacturing industry. In this pa per , ABAQU S software and the fundamental mechanisms of L TF and L PF were briefly introduced fir stly , and then the application of ABAQU S in laser thermalstress forming and laser peen forming processes were analyzed in detail . By analyzing some key problems in the numerical simulation such as the definition of loads , constitutive relationship s , meshing technique and boundary conditions , etc , it provided specific solving methods. At last , some simulation practices were given based on ABAQU S , which pointed that the FE soft ware ABAQU S could provide the simulation of laser forming p rocess with strong analysis platform. The simulation result s which would do a great po sitive eff