Calculating Shear Strength of a Material?
Calculating Shear Strength of a Material?
(OP)
How do you calculate for the Ultimate Shear Strength of a Material?
I have a SS416 heat treated at 800 (From Machinery Handbook) and now has:
Yeild Strength: 150000psi
Ultimate Tensile Strength: 195000psi
Hardness: C41, 390Bhn
One book says:
Ult. Shear Strength = 0.57 x Material Yield Strength
Machinery's Handbook says:
Ult.Shear Strength = 0.50 x Ult. Tensile Strength
They are both close in terms of results but which one if at all?!
I have a SS416 heat treated at 800 (From Machinery Handbook) and now has:
Yeild Strength: 150000psi
Ultimate Tensile Strength: 195000psi
Hardness: C41, 390Bhn
One book says:
Ult. Shear Strength = 0.57 x Material Yield Strength
Machinery's Handbook says:
Ult.Shear Strength = 0.50 x Ult. Tensile Strength
They are both close in terms of results but which one if at all?!





RE: Calculating Shear Strength of a Material?
I would use the 0.5xUlt.Tensile strength
regards
desertfox
RE: Calculating Shear Strength of a Material?
RE: Calculating Shear Strength of a Material?
For round bar in shear (as used in the ESDU MMDH) anything up to 0.7 times may be achieved.
Examining MIL-HDBK-5, which has a mixture of shear test methods, with quite a lot of punch shear through sheet, 0.6 times is sort-of-usual.
-RP.
RE: Calculating Shear Strength of a Material?
The Maximum Distortion Energy Theorem shows that shear stress is approximately 0.577 that of normal yield strength. I've found this to be highly accurate comparing computed to laboratory results.
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada
RE: Calculating Shear Strength of a Material?
RE: Calculating Shear Strength of a Material?
want to use this. Do you want the part
to shear as in a shear pin or do you want it
not to shear.