铝合金点焊接头疲劳性能研究及寿命分析Fatigue Performance Study & Life Analysis of Aluminum Alloy Spot Welded Joint
寇宏滨,王得天
摘要(Abstract)：
为了支持多环形纹路表面电极帽式铝合金点焊接头在车辆正向开发中的设计应用,设计并开展了一系列的铝合金点焊接头疲劳试验研究和疲劳寿命预测方法研究。过程中获得了点焊接头的载荷-寿命对应关系,总结了铝合金点焊接头疲劳强度受载荷方向、母材强度及厚度等因素影响的普遍规律,分析了铝合金点焊接头的疲劳失效破坏模式,并提出了评价铝合金点焊接头疲劳寿命的S-N曲线,可以有效指导铝合金点焊接头的抗疲劳设计开发工作。
关键词(KeyWords)： 铝合金点焊接头;疲劳强度;疲劳寿命预测
基金项目(Foundation):
作者(Author): 寇宏滨,王得天
DOI: 10.19710/J.cnki.1003-8817.20200197
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