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Found 3 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'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
  3. Hi! I am trying to simulate, using hypermesh (optistruct), a 3 point bending test of a composite sandwich panel made of carbon fiber and aramid honeycomb. I have modelled the core using PSOLID property and MAT9ORT material and the skin where modelled using the tool "find faces", and then creating four CFK plies that form a laminate which is associated to the property PCOMPP that the skins have. I used MAT8 to define CFK plies. The Optistruct solver doesn't output any errors at all; however, when visualising the deformed shape, it represents an absolutely wrong and wierd shape for the sandwich panel where the supports are as shown in the attached picture (right and left side of the photo). I've tried to model it several times and even change some properties in case there was material failure in such points, but didn't work. I need help as soon as possible. Thank you!
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