| 板料冲压成形一步正向有限元分析 |
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| 引用本文： | 赵玉静,吴建军. 板料冲压成形一步正向有限元分析[J]. 塑性工程学报, 2010, 17(3). DOI: 10.3969/j.issn.1007-2012.2010.03.012 |
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| 作者姓名： | 赵玉静 吴建军 |
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| 作者单位： | 西北工业大学,现代设计与集成制造技术教育部重点实验室,西安,710072 |
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| 基金项目： | 国家863计划资助项目 |
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| 摘 要： | 提出基于理想成形理论的板料冲压成形一步正向有限元分析方法。给出迭代初始解获取、线性化处理、收敛条件判定等具体算法,以及所使用的材料应力应变关系和屈服准则。运用该方法进行带凸缘盒形件和无凸缘筒形件的冲压成形模拟,将减薄率与增量有限元方法计算结果进行比较,并就无凸缘筒形件进行实验验证。结果表明,该方法计算结果可靠,使用简便,计算效率高。
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| 关 键 词： | 理想成形 有限元 成形模拟 |
The forward one-step finite element analysis for sheet metal stamping |
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| ZHAO Yu-jing,WU Jian-jun. The forward one-step finite element analysis for sheet metal stamping[J]. Journal of Plasticity Engineering, 2010, 17(3). DOI: 10.3969/j.issn.1007-2012.2010.03.012 |
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| Authors: | ZHAO Yu-jing WU Jian-jun |
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| Abstract: | Based on the theory of ideal forming,a forward one-step approach of finite element analysis for sheet metal forming was developed.The methods to obtain the initial solution for iteration,to linearize and to judge convergence were given.The constitutive relationship and yield criterion of the material were also presented.The forming processes of a box workpiece with flange and a cylinder workpiece without flange were simulated respectively in this way.The thinning of blank was compared with computing results of incremental FEM.A forming experiment of cylinder part without flange was carried out.It shows the computing result is credible,the operation is simple and convenient,and the computing efficiency is improved. |
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| Keywords: | ideal forming FEM simulation for forming |
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