Hi all,
I have a question about von Mises stress used in the structural mechanics. According to its definition, von Mises stress can be computed using the formula, in 2D application :
σvm = sqrt ( ( σxx)^2 + (σyy)^2 - σxx*σyy +3(τxy)^2 ),
where σi,j is either normal stress or shear stress.
But when I compare von Mise stress computed from the formula above and von Mises stress generated by default by COMSOL, the value is different. I'm quite surprised as well as confused. So I'm wondering whether COMSOL uses a different formula.
Thx for your advices![]()
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I have a question about von Mises stress used in the structural mechanics. According to its definition, von Mises stress can be computed using the formula, in 2D application :
σvm = sqrt ( ( σxx)^2 + (σyy)^2 - σxx*σyy +3(τxy)^2 ),
where σi,j is either normal stress or shear stress.
But when I compare von Mise stress computed from the formula above and von Mises stress generated by default by COMSOL, the value is different. I'm quite surprised as well as confused. So I'm wondering whether COMSOL uses a different formula.
Thx for your advices