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宽板拉弯的数值分析与回弹计算
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英文标题：Numerical calculation and analysis on spring back of sheet metal stretch bending |
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作者：杜颂 |
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单位：北京航空航天大学机械工程及自动化学院 100083 |
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关键词：拉弯 回弹 残余应力 |
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分类号：TG386 |
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出版年,卷(期):页码：2004,29(5):19-22 |
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摘要：
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将宽板拉弯的变形区划分成若干个单元 ,按单元的塑性变形体积不变条件确定应变 ,利用增量理论 ,求算宽板拉弯的应力分布 ,并依据应力分布曲线 ,计算回弹及残余应力
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Increment strain theory is applied to calculating the distribution of the stress in stretch bending of sheet metal. The formed zone is divided into many elements to determine the strain by the condition that metal remains constant volume in deformation. Then according to the distribution of the stress, spring back and residual stress have been computed.
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基金项目：
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作者简介：
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参考文献：
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1 WooDM Analysisofthecup drawingprocessJournalofMechani calEngineeringScience,1964,6(2):116～131
2 AlMakkyMM ,WooDM Deep drawingthroughtractrixtypediesInternationalJournalofMechanicalScience,1980,22:467～480
3 胡世光,陈鹤峥板料冷压成形原理北京:国防工业出版社,1989
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