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Which of the following relation is correct?(a) Permissible Stress = Yield Stress x Factor of Safety(b) Permissible Stress = Yield Stress / Factor of Safety(c) Yield Stress = Permissible Stress /Factor of Safety(d) Permissible Stress = Yield Stress – Factor of SafetyThis question was addressed to me in unit test.The question is from Design Considerations, Analysis & Methods topic in section Basics of Structural Design of Design of Steel Structures

Answer»

The correct answer is (b) Permissible STRESS = Yield Stress / Factor of SAFETY

The best I can EXPLAIN: Permissible Stress = Yield Stress / Factor of Safety. Permissible Stress is the AMOUNT of stress that will not cause failure. It is a fraction of yield stress. It takes care of overload or other unknown factors.



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