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Apply normal pressure to membrane elements




I would like to model a structure (something like a camping tent) made of beams for the frame and membrane elements for the membrane. Then I would like to apply a pressure to simulate a pressure difference between the inside and the outside of the structure. The problem is that I can not apply a pressure on the membrane elements on Nx Nastran. Am I right? There is a workaround for that?

I know that ABAQUS allows the application of pressure to membrane element using the adaptive automatic stabilization. There is an option of this kind in Nastran. I am using SOL 106 (Nonlinear Static)



Re: Apply normal pressure to membrane elements

Siemens Phenom Siemens Phenom
Siemens Phenom

Normal pressure can be applied to membrane elements in NX Nastran. The correct solution can only be obtained via a geometric nonlinear analysis (stiffness matrix updated based on deformations).


Geometric nonlinearity is requested via PARAM, LGDISP, 1