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Ultimate shear and ultimate tensile relation

Ultimate shear and ultimate tensile relation

Ultimate shear and ultimate tensile relation

(OP)
Is saying that the ultimate shear allowable is approx. equal to 0.6 times the ultimate tensile allowable if only the tensile allowable is known?  I'm trying to "fix" a horribly made appendix and I've never encountered this relation before.

RE: Ultimate shear and ultimate tensile relation

What material?

RE: Ultimate shear and ultimate tensile relation

(OP)
1/4-28 bolts.  80,000 psi tensile strength.  that's all the information I have from the specs.

RE: Ultimate shear and ultimate tensile relation

The Distortion-Energy theory states that the yield strength in shear is given by the equation;

Sxy=0.577 x Sy


The Maximum-Shear-Stress theory states that the yield strength in shear is given by the equation;

Sxy=0.50 x Sy

Ref Mechanical Engineering Design 4th ed Shigley  pp 232, 234

Cheers

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