试题与答案

对于在弹性范围内受力的拉（压）杆，以下说法中，（）是正确的。 A.长度相同、受力相同

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题目：

对于在弹性范围内受力的拉（压）杆，以下说法中，（）是正确的。

A.长度相同、受力相同的杆件，抗拉（压）刚度越大，轴向变形越小

B.材料相同的杆件，正应力越大，轴向正应变也越大

C.杆件受力相同，横截面面积相同但形状不同，其横截面上轴力相等

D.正应力是由于杆件所受外力引起的，故只要所受外力相同，正应力也相同

E.质地相同的杆件，应力越大，应变也越大

答案：

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