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摘要：
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采用DEFORM-2D软件对半空心铆钉自冲铆接工艺过程进行数值模拟,分析了铆接成形过程、应力应变和行程载荷变化趋势。采用观察铆接截面形状和行程-载荷曲线的方法,分析了凹模凸台高度和铆钉材料对铆接接头质量的影响。结果表明,在一定范围内增加凹模凸台高度,能提高铆接接头的自锁性能;适当硬度的铆钉有利于形成具有良好的力学性能的铆接接头。
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Finite element simulation of the riveting process of semi-tubular rivet was carried out by DEFORM-2D software.Forming process of the riveting,distribution of stress and strain,and load-stroke behavior were analyzed.The influence of raised altitude of concave die and rivet material on riveted joint performance was analyzed by means of riveted joint section shape and displacement-load curve.The results show that increasing raised altitude of concave die can enhance self-locking performance of riveted joint in certain scope,and that rivet of suitable hardness is advantageous to form riveted joint of better mechanics performance.
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基金项目：
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国家自然科学基金资助项目(50665002);;
南昌市科技局资助项目(洪科发技字(2006)125号)
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作者简介：
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参考文献：
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