Glossary Term

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

In RFEM, there are the following modelling 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 modelling using quadrangle surfaces is preferred in the case of complex models.


Shell Curved surface Quadrangle Rotated surface NURBS



RFEM Main Program
RFEM 5.xx

Main Program

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

Price of First License
3,540.00 USD
RFEM Tensile Membrane Structures

Add-on Module

Form-finding of tensile membrane and cable structures

Price of First License
1,750.00 USD