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12/01/2017

002030

Markus Baumgärtel

Results

RFEM

5.xx

How can I obtain weld stresses between two surfaces?

Answer

In order to determine the correct stresses, it is necessary to know the local coordinate system of the surface. This can be activated in the Display navigator under "Model" → "Surfaces" → "Surface Axis Systems x, y, z". All stresses with a "+" in the index represent the stresses on the top side, that is, the side of the positive local z-axis. In this specific case, this means that my represents the bending moment of the plate in the direction of the global y-axis and must therefore have a value of 2 kNm/m as a result. The average in the diagram shown confirms this assumption with a value of 1.95 kNm/m (deviations can be reduced by a finer FE mesh). The average of the shear flow is 100 kN/m and thus corresponds to the applied load. Thus, the stress sigma-y,+ reflects the compressive stress of the plate on the top side and tau-xy,+ corresponds to the shear stress in the joint on the same side.

Keywords

weld weld stress internal forces in surfaces

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  • Updated 02/26/2021

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