试题与答案

两根梁尺寸、受力和支承情况完全相同,但材料不同,弹性模量分别为E1和E2,且E1=7

题型:单项选择题

题目:

两根梁尺寸、受力和支承情况完全相同,但材料不同,弹性模量分别为E1和E2,且E1=7E2,则两根梁的挠度之比为()。

A.y1/y2=1/14

B.y1/y2-1/7

C.y1/y2=1/49

D.

答案:

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