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Showing results for tags 'non linear analysis'.
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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 title. 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, 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 in advance. Model_1.hm solver_deck_s1_e.out
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!
The results for an analysis with MAT1 (Linear elastic only) card and another with MATS1 (Non Linear using TABLES1 card) subcase is showing the same results. The load applied should make the part undergo plastic deformation when MATS1 is used but this is not observed in the results. C1C1R_0.1.hm