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Which bending theory should be used for the calculation of plates and shells - Kirchhoff or Mindlin?

Answer

In the "Calculation Parameters" dialog box, you can choose between the two bending theories (see Figure 01).

Figure 01 - Specifying Plate Bending Theory

Shear force deformations are included in the calculation according to Mindlin , but are not considered according to Kirchhoff . This means: For thicker plates and shells, the Mindlin theory leads to good results, for thin elements, the Kirchhoff theory.

Keywords

plate bending theory bending theory Kirchhoff Mindlin

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RFEM Main Program
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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