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  1. AmyLovisa

    Contact within a submodel

    Hi Mustaine3 It is general contact in an Explicit analysis! I will look into the controls now. Thank you so much for the advice!
  2. AmyLovisa

    Contact within a submodel

    Hi Everyone, I am using the submodelling technique to look at stress concentration around a fastener hole in a thin steel sheet. The surface is also then in contact with a rubber washer which compresses the region around the fastener hole. I have successfully applied the submodelling technique...
  3. AmyLovisa

    Highly nonlinear explicit analysis using shell elements

    Hi Rob and Corus, Yep, you were 100% right. Even though the boundaries appear very rigid, they must be somewhat relaxed. I just tried the model with the boundaries free to translate in the y direction with only the line of symmetry preventing translation in the y. There is no way the conditions...
  4. AmyLovisa

    Highly nonlinear explicit analysis using shell elements

    Hi Rob and Corus, Thank you so much for your input. Especially for taking the time and resources to run the model. I will modify the elements in the hyperelastic material to avoid the excessive distortions. You are correct, the two lines of nodes are restrained to simulate a clamp. Two 6 mm...
  5. AmyLovisa

    Highly nonlinear explicit analysis using shell elements

    Hi Corus, Thanks for your input. After your suggestion I once again checked the boundary conditions and couldn't see any fault. They match the experimental well. I even released the boundaries so one region is now free to rotate in a bid to reduce the bending in that direction. Still no...
  6. AmyLovisa

    Highly nonlinear explicit analysis using shell elements

    Hi everyone, I am having a great deal of difficulty with a model I have been working on for a long time now. I am modelling corrugated roof cladding (waveform profile) that is only 0.42 mm thick and made from high strength steel. There is a small hyperelastic dart compressing against the top...
  7. AmyLovisa

    Complex Abaqus 6.12 Contact Problem

    Hi Rob, Thank you so much for the advice. 1. Yes you were right. The hyperelastic material was unstable (I'll switch to Neo-Hooken), although the simulation diverged before the strain within the material became unstable. I suspect the contact definition cannot converge when the steel buckles...
  8. AmyLovisa

    Complex Abaqus 6.12 Contact Problem

    Hi, I have been working on this problem for a very long time now and am incredibly frustrated by it. I have a small hollow hyperelastic dart (not incompressible) that is compressing against a thin curved steel surface, where the compressive load is applied on top of the dart (linearly...
  9. AmyLovisa

    Workstation for Abaqus

    Hi, I'm interested in accelerating my analysis with a GPU also. Ideally I would like to use the Tesla K20 GPU, but I have nearly exhausted my research budget. Do you think the NVIDIA Geforce GTX Titan would work well? It is CUDA enabled and has similar hardware to the Tesla. Thanks, Amy

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