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Found 4 results

  1. Hi, I'm trying to build a model in order to simulate a shear test on a composite panel with honeycomb core. I've been trying with non-linear static load-step but I get a non-convergent results and the error you can read in the .out file attached here. One possible solution I've tried, could be tuning the NCUT parameter in the NLADAPT collector, but this couldn't solve the problem and I get the same error. I'm also not sure about the type of analysis I've chosen and how I have modeled the physics of the problem, do you think a non-linear transient or explicit simulation could be more suitable for this kind of problem? I attach here my model and the .out file of the run, I'll really appreciate your help! Thank you. solver_deck_s1_e.out Model_1.hm
  2. Hi, I need help with this model. I would like to perform a non-linear analysis on a composite specimen. It's a sandwich panel with honeycomb core, modeled as mat9 ort with two plies of carbon fiber per side. The main issue is the contact between the punch and the panel, the same as the one with supports. I'm not able to model them correctly. I've thought to use the contact slide but the results does not have sense. I have compared this with real test and the reaction force on the punch is more than 12 times bigger than reality. Looking at the results plot, It's clear that contacts behavior is not acceptable. Can you please help me? I attach here the .hm file. Thank you!
  3. Hi. I want to perform stress analysis of a torsion bar, also named as anti roll bar. I perform it as static analysis case.. When I apply displacement instead of forces to arms I get different stress values.. I think I choose wrong analysis type. Anti roll bar acts like a spring in suspension strcuture, by taking into considiration this which type of analysis should I choose ? I attached the image of antri roll bar.
  4. I am getting element distortion in optistruct Non-linear static analysis.. and due to this the simulation is not converging.. can anyone give your suggestion on this problem..
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