- #1
guideonl
- 58
- 6
Hi everyone,
The practical equivalent stress in a welded part, subjected to torque and bending stresses, is the square root of the sum of the two squared shear stresses (from torque & equal shear) squared, + the normal stress (from bending) squared. Is it accepted/common to use this way to get the equivalent stress, or it must be computed from the 2 dimensional equation for the equivalent stress = the squared root of normal stress squared + 3 times the shear stress squared?
By the way, I found somewhere a similar equation to that mentioned above, with 2 times the shear stress squared instead of 3 times the shear stress squared. Is it a mistake or just another method?
Also, I am new in this forum, and I would like to know if there is a simpler way to present questions using engineering known formulas & symbols? If positive - please advise how to do so.
Thank you, Guideon
The practical equivalent stress in a welded part, subjected to torque and bending stresses, is the square root of the sum of the two squared shear stresses (from torque & equal shear) squared, + the normal stress (from bending) squared. Is it accepted/common to use this way to get the equivalent stress, or it must be computed from the 2 dimensional equation for the equivalent stress = the squared root of normal stress squared + 3 times the shear stress squared?
By the way, I found somewhere a similar equation to that mentioned above, with 2 times the shear stress squared instead of 3 times the shear stress squared. Is it a mistake or just another method?
Also, I am new in this forum, and I would like to know if there is a simpler way to present questions using engineering known formulas & symbols? If positive - please advise how to do so.
Thank you, Guideon