已知图示杆件的许用拉应力[σ]=120MPa,许用剪应力[τ] = 90MPa,许用挤压应力[σbs]=240MPa,则杆件的许用拉力[P]等于:A. 18.8kN
考试:国家电网招聘
科目:机械动力类 (电网)(在线考试)
问题:
A:67.86kN
B:117.6kN
C:37.7kN
D:
![](/timu/file/13811835_0.jpg)
答案:
解析:
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已知图示杆件的许用拉应力[σ]=120MPa,许用剪应力[τ] = 90MPa,许用挤压应力[σbs]=240MPa,则杆件的许用拉力[P]等于:A. 18.8kN
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