运用分子动力学方法,采用EAM势函数对纳米单晶铜杆拉伸过程进行分析.选择一个无孔的纳米单晶铜杆作为模型进行拉伸实验,分析内部拉伸应力分布情况;在该模型中间挖出一个孔洞进行拉伸实验,分析孔边拉伸应力分布情况,用工程应力的方法计算应力、应力集中系数.改变模型尺寸、孔洞半径,对多个模型孔边应力集中系数进行计算,总结孔边应力集中的特点.
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