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什么为泊松比其最大值可为多少

更新时间: 2020-07-02 00:00:00     

泊松比是指材料在单向受拉或受压时,横向正应变与轴向正应变的绝对值的比值,也叫横向变形系数,它是反映材料横向变形的弹性常数。

在弹性工作范围内,泊松比一般为常数,但超越弹性范围以后,泊松比随应力的增大而增大,直到泊松比等于0.5为止。

关键词: 什么 多少

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