Allowable Shear Strength of Spring
Allowable Shear Strength of Spring
(OP)
I am a design engineer designing extension (tension) springs. Does anyone have technical documents or suggestions on what to use for allowable shear strength for springs? I have seen people use 0.4 times the tensile strength (normally Rm), 0.45 times Rm, and also 0.75 times Rm. These seem like such a general rule, there must be a more equation based solution. Help is appreciated.





RE: Allowable Shear Strength of Spring
RE: Allowable Shear Strength of Spring
Tobalcane
"If you avoid failure, you also avoid success."
"Luck is where preparation meets opportunity"
RE: Allowable Shear Strength of Spring
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I should have noted my spring material is stainless steel. Typical sizes are 48mm nominal diameter with 9mm 1.431 V2a wire. Total length typically is around 110 to 300mm.
RE: Allowable Shear Strength of Spring
There are also issues of cyclic use (fatigue) and relaxation or creep to take into account.
RE: Allowable Shear Strength of Spring