Nonlinear Material Law for Membranes
RFEM provides the option to couple surfaces with the stiffness types "Membrane" and "Membrane-Orthotropic" with the material models "Isotropic-nonlinearly elastic 2D / 3D" and "Isotropic Plastic 2D / 3D" (add-on module RF-MAT NL required).
This functionality allows you to simulate the nonlinear strain behavior of z. Eg ETFE films.
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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
Consideration of nonlinear material laws
Form-finding of tensile membrane and cable structures