This article was translated by Google Translator View original text

New

FAQ 003470 EN

12 August 2019

Thomas Günthel Modeling | Structure RFEM

What is the best way to transfer the force between solids and surfaces?

Answer

Since a surface is a 2D element and therefore the transition from surface to solid is a line, singularities may occur here. Therefore, the moments my and mx lead to problems.

The best way to create the transition is by using rigid members, as shown in Figure 1.

In this option, the rigid members cover the height / thickness of the surface and thus ensure that the moment is introduced cleanly into the solid. In addition, the rigid members must protrude into the surface; the depth has been selected to be half of the surface thickness.

Figure 2 shows the results of the calculation. The model without the rigid members has a large deformation, which illustrates the effect. The model with the rigid members, however, shows in some cases the same deformation as the pure surface or solid model.

Keywords

Modeling Volume Surface Transition Singularity

Downloads

Contact us

Contact to Dlubal

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

+49 9673 9203 0

info@dlubal.com

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