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材料力学如何计算剪切和挤压

更新时间: 2020-09-19 00:00:00     

材料力学计算剪切应力和挤压方法如下:

计算剪切应力:平均剪切应力t等于Q除以A,截面上某点剪应力t等于QS除以IB,其中Q为截面剪力,A为受剪面积,S为截面上求算点以下部分截面对中性轴的净矩,I为截面的惯性矩,B为截面求算点宽度;计算挤压应力:挤压应力t等于Q除以A,其中Q为挤压力大小,A为受挤压的面积,取投影面积。

关键词: 材料 力学 如何 计算 挤压

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