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For steel, the ultimate strength in shear as compared to ultimate strength in tension is:
1. Same
2. 1/2
3. 1/3
4. 2/3

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Correct Answer - Option 4 : 2/3
Explanation:
Steel is a ductile material which is strong in tension as compared to shear.

In most engineering applications the relation between the ultimate strength in tension and shear is given by the relation:

σshear = 0.6 × σut

σut : σshear = 1 : 0.6 = 5 : 3 = 1.67

The ultimate strength of steel in tension in comparison to shear varies in the ratio of 1.7 to 1.5.

So σut : σshear = 3 : 2

Therefore, for steel, the ultimate strength in shear as compared to ultimate strength in tension is, 2 : 3

  • Shear yield stress is 50% of tensile yield strength.
  • σyt : τut = 2 : 1

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