FAQ 001079 EN

1 December 2017

Robert Vogl Calculation RFEM

What is the effect of contact stresses σz at curved surfaces?

Answer

The contact stresses σz on rotational surfaces act in the direction of the local z-axis of the surface.

Each FE element has its own local coordinate system, which corresponds to the local coordinate system of the surface. If the local z-axis of the surface shows outwards, then it does this at all FE elements and thus along the entire surface.

The direction of acting at curved surfaces can be controlled in the graphic, when selecting the 'FE Mesh → On Surfaces → FE Axis Systems x,y,z' option in the Display navigator.

Keywords

contact stress curved surface axis system elastic surface foundation

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RFEM 5.xx

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Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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