| 冲压成形工艺对薄壁构件碰撞性能影响的仿真研究 |
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| 引用本文： | 孙成智,陈关龙,林忠钦.冲压成形工艺对薄壁构件碰撞性能影响的仿真研究[J].汽车工程,2004,26(2):233-235,245. |
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| 作者姓名： | 孙成智 陈关龙 林忠钦 |
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| 作者单位： | 上海交通大学机械与动力工程学院,上海,200030 |
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| 摘 要： | 利用LS～DYNA通用有限元模拟软件，对板料冲压成形和闭口帽型梁的碰撞进行有限元模拟，研究了冲压成形工艺引起的壁厚减薄、残余应力和塑性应变对碰撞性能的影响。建立了板料冲压成形模拟和碰撞模拟之间的数据转化方法。研究结果表明冲压过程的壁厚变化、残余应力对碰撞模拟有着显著的影响。
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| 关 键 词： | 冲压成形工艺 薄壁构件 碰撞性能 仿真 数值模拟 汽车 板料 |
A Simulation Study on the Effects of Stamping Process on Crash Behavior of Thin-walled Panels |
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| Abstract: | The stamping processes and crash simulation were performed using commercial FEA software LS-DYNA. The effect of thinning, residual stresses and plastic strains occurred in stamping process on the crash behavior of a closed hat section beam was studied. And a method of data conversion between simulations of sheet metal forming and crash test was established. |
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| Keywords: | Sheet metal forming Numerical simulation Crash behavior |
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