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Thermal Expansion Shear Stress Evaluation Interpretation
Posted Mar 20, 2021, 6:42 a.m. EDT Structural Mechanics Version 5.5 0 Replies
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Hello!
I am doing a simulation of stresses in multilayer material blocks due to thermal expansion.
The pictures attached show the deformation and temperature distribution of the model, and the plane of evaluation (a horizontal plane in xy-plane).
In the 2nd picture, green represents BiTe, orange represents copper and grey represents ceramics. 300°C of Heat is supplied from above, below it is 20°C.
I have evaluated solid.sxz, solid.sxy and solid.syz.
The results are:
solid.sxz = 1,77E08 N/m2
solid.sxy=1,9E08 N/m2
solid.syz=1,77E08 N/m2
While solid.sxz and solid.syz would in case of a horizontal plane give the value for the stress tensor component tau zx and tau zy, shouldn't solid.sxy result in 0?
The normal vector would be x, so the plane in question is the yz plane, but the plane of evaluation is in the xy plane, so there is no height in this plane.
Or if the calculation is done in a point in this plane, why would there be a stress in y-direction on the yz-plane and why is it bigger than the two shear stress components?
Thanks in Advance and best regards, Peter
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Hello Peter Zellinger
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