用夹剪剪直径3mm的钢丝(如图所示),设钢丝的剪切强度极限=100MPa,剪子销钉的剪切许用应力为 = 90MPa,要求剪断钢丝,销钉满足剪切强度条件,则销钉的最小直径应为:
考试:国家电网招聘
科目:机械动力类 (电网)(在线考试)
问题:
![](/timu/file/13811836_0.jpg)
![](/timu/file/13811836_0_1.jpg)
![](/timu/file/13811836_0_2.jpg)
A:3.5mm
B:1.8mm
C:2,7mm
D:1.4mm
答案:
解析:
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用夹剪剪直径3mm的钢丝(如图所示),设钢丝的剪切强度极限=100MPa,剪子销钉的剪切许用应力为 = 90MPa,要求剪断钢丝,销钉满足剪切强度条件,则销钉的最小直径应为:
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