The only difference between the two models is that for one, I specify a failure model thanks to "MATF" and ask for the strength ratios with "PARAM,SRCOMPS,YES".
Doing that, I obtain a 40% higher stress.
I have made sure that SR>>1 so that…
I am using GAP elements in a nonlinear static solution to analyze the deflection of a clamp as it presses down on ceramic block. There are discrete faces that contact the ceramic and I defined gap elements between them and the ceramic. As I increment…
Currently it takes about 1min to complete one analysis. however, i have over 40k bdf files. Is there a way that can significantly reduce the time? The Nastran Command options dont seem to help much.
my bdf file is 16.5mb large. i cant upload…
I have an issue where applying either a total load or force on a model with frictional contacts causes large displacements at the first time step (2% of load) and it doesn't converge. It does work with an enforced displacement however.
I am attempting to get correct displacements for a simple beam with an enforced rotation applied to one end -- please see the attached .dat file. "Correct displacements" are ones where the free end of the beam moves in an arc, not in a line. In my case…
Hello,
Is it possible to supply scale factors corresponding to the scaled shapes of each SOL 105 mode so as to introduce geometric imperfections to the FEM?
I know of the long ended way of doing this using MSC.Patran (using fields…
I have been successful in extracting pre-loaded nonlinear stiffness matrices using EXTSEOUT in SOL 103 restarting from a SOL106, such as suggested in the topic:
forums.mscsoftware.com/.../showflat.php
Now, I need to do the same…
When running SOL 128 - nonlinear harmonic frequency solution - I get a FATAL message that there are no nonlinear degrees of freedom defined. How do I define these?
