| 用有限元多晶体模型预测不同加载方式对板条多点弯曲成形的影响 |
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| 引用本文： | 李明哲,苏世忠,陈庆敏,傅沛福.用有限元多晶体模型预测不同加载方式对板条多点弯曲成形的影响[J].吉林大学学报(工学版),2000,30(3). |
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| 作者姓名： | 李明哲 苏世忠 陈庆敏 傅沛福 |
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| 作者单位： | 吉林工业大学,辊锻工艺研究所,吉林,长春,130025 |
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| 基金项目： | 国家 8 6 3自动化领域基金资助项目! (86 3 5 11 82 0 0 18)，教育部跨世纪优秀人才培养计划基金 |
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| 摘 要： | 采用有限元多晶体模型对无模多点成形条件下不同加载方式的板条多点弯曲成形过程进行了数值模拟。利用作者开发的FEPM软件系统预测出多点模具成形法和边部向中心成形法两种变形路径下的弯曲成形结果 ,同时给出了边部向中心成形法变形过程各阶段的等效应力场、等效应变场和平均应力场等 ,并对不同加载方式下金属的塑性流动规律进行了理论与实验对比。
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| 关 键 词： | 弯曲成形 有限元多晶体模型 无模多点成形 |
Prediction of Multi-Point Bending of Aluminium Strip under Different Loading Paths by Finite Element Polycrystal Model |
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| LI Ming-zhe,SU Shi-zhong,CHEN Qing-min,FU Pei-fu.Prediction of Multi-Point Bending of Aluminium Strip under Different Loading Paths by Finite Element Polycrystal Model[J].Journal of Jilin University:Eng and Technol Ed,2000,30(3). |
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| Authors: | LI Ming-zhe SU Shi-zhong CHEN Qing-min FU Pei-fu |
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| Abstract: | Numerical simulation of multi point bending process of strip under different loading paths is dealt with the finite element polycrystal model.The results of multi point forming of aluminium sheet under conditions of multi point die forming and edge to center forming are predicted by the developed FEPM software,which are the fields of equivalent tress,equivalent strain and average stress.Both calculated results and experimental results are verified. |
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| Keywords: | bending finite element polycrystal model multi point forming |
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