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What exactly is a Von mises result telling me?

What exactly is a Von mises result telling me?

What exactly is a Von mises result telling me?

(OP)
Just a question, I am analysing a space frame 4130 steel for failures of tensile, compressive, shear and buckling. What I have done is a von mises analysis in ansys then used the yield strength of the material against max von mises stress to obtain a factor of safety.

This von mises stress vaule that I have does it take into account for tensile, compressive and shear? or which failure does it tell me?

Also anyone know how I would go about checking for failure due to buckling?

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