在63Sn-37Pb钎料合金单轴时相关变形和失效行为研究的基础上,提出了耦合损伤时相关循环本构模型和疲劳失效模型;在模型中,引入了损伤演化方程,考虑了时相关效应;应用该理论模型对该钎料在不同应变率、不同应变幅值、不同保持时间及其历史下的变形行为及疲劳失效行为进行了模拟,并对疲劳寿命进行了预测.结果表明:该理论模型是合理有效的.
所属栏目
物理模拟与数值模拟教育部博士点基金资助项目(20040613002);国家自然科学基金资助项目(10372086)
收稿日期
2007/11/22008/3/15
作者单位
罗艳:西南交通大学应用力学与工程系, 四川 成都 610031
高庆:西南交通大学应用力学与工程系, 四川 成都 610031
杨显杰:西南交通大学应用力学与工程系, 四川 成都 610031
备注
罗艳(1980-),女,四川射洪人,博士研究生.
引用该论文:
LUO Yan,GAO Qing,YANG Xian-jie.Damage-coupled Time-dependent Theoretical Model for 63Sn-37Pb Solder Alloy[J].Materials for mechancial engineering,2008,32(11):78～81
罗艳,高庆,杨显杰.63Sn-37Pb钎料合金耦合损伤时相关理论模型[J].机械工程材料,2008,32(11):78～81
被引情况:
【1】
郭洪强, "63Sn-37Pb和Sn-3Ag-0.5Cu合金钎料的扭转低周疲劳性能",机械工程材料
38, 65-69(2014)
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