FAQ 001441 | Are different stiffnesses possible for the x and y directions of a surface in RFEM?

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First Steps with RFEM

First steps

We provide hints and tips to help you get started with the basic program RFEM.

11/04/2020

002008

Markus Baumgärtel

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Question

Are different stiffnesses possible for the x and y directions of a surface in RFEM?

Answer

Yes, it does. For this reason, orthotropic properties can be defined either for the material or for the surface.

Orthotropic material:

Enter the elastic moduli of the material for the two surface directions (if the additional module RF-MAT NL is not licensed, only the material models 'Isotropic Linear Elastic' and 'Orthotropic Elastic 2D/3D' can be used). Then, assign the material to the surface.

Image 01 - Define material model

Orthotropic surface:

Define the stiffness type of the surface as 'Orthotropic.' Then, you can define the coefficients of the local stiffness matrix according to different criteria.

Image 02 - edit surface stiffness

Keywords

Dlubal FAQ Orthotropic Orthotropy Stiffness Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal

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