Structural Analysis Wiki

Technical Terms Used in Dlubal Software

The Dlubal Structural Analysis Wiki explains technical terms used in structural analysis and design. The terms are given in alphabetical order and are usually used in Dlubal Software.


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S Shell

A shell represents a single-curved or double-curved surface.

In RFEM, there are the following modeling possibilities, for example:

  • Quadrangle surface
  • Rotated surface
  • Pipe
  • B-spline surface
  • NURBS surface
  • Trajectory surface

Shells are loaded by bending and membrane forces. If the thickness of a shell is small in comparison with its span, the load is usually transferred by membrane forces.

As described in FAQ 002727, the modeling using quadrangle surfaces is preferred in the case of complex models.

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