檢視真应力的原始碼

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中文名;真应力

外文名;true stress

繁    体;真应力

拼    音;zhenyingli
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'''真应力'''定义为试件的拉力除以试件的瞬时横截面积。塑件材料在拉伸试验进入屈服[[阶段]]以后，开始产生显著的塑性变形，其数值远比弹性变形大。此外，试件横截面也渐渐变小，因此在塑性阶段真应力远高于通常认为的[[工程]]应力。<ref>[https://www.docin.com/p-1069716534.html 真应力-应变的定义及其力学特征],豆丁网 , 2015年2月19日</ref>