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Found 5 results

  1. Hi, simulating a curved hyperelastic NLFE cantilever beam returned unexpected results: the beam is unstable instead of holding the initial arc shape in the absence of gravity load. The issue does not happen with a linear material. What is the cause and how can it be resolved? NLFE_curved_hyperelastic.mdl
  2. Hello! I really need your help. whenever I implemented OPTISTRUCT, I got " Non-convergent nonlinear iterations for subcase 2" result. I set hyper-elastic material, and pshellx for 2D design. Also My load collectors are, SPC/LOAD/TABLED1/NLOAD/NLPARM, and I set load step NLGEOM I don't know why I couldn'y get nonlinear analysis result in OPTISTRUCT. My material is the example of MATX62.. I attached My entities and NLPARM screen-picture too Please give me some advices Thank you, Best Regards,
  3. Hi all I am new to this Forum.Happy to know i am also part of this. i am solving Gasket Compression test in Abaqus with hyperelastic Material. Please let me know how inputs are added concerned to Material. Thanks in Advance.
  4. Dear All, I want to simulate tensile testing of hyper-elastic material such as poly-amide. which material model and damage model required for the analysis. Regards, Ganesh M
  5. I am simulating a rubber component where rubber has a self - contact as it compresses, but i can see through animations that elements are intersecting and penetrating. I have defined type 19 self -contact (with Istf=4 and inacti 6 and igap =1) by using surf cards via components. and used mat 42 as material card and Isolid 24 as formulation. with material property. The model is in volume cavity and can only displaces in gap between it and load is applied horizontally by displacing a rigid shell along outerbody in horizontal direction and rigid element with internal nodes of rubber is fixed in space. Cut -section displacement <2mm (gap is 2mm) and element start to deform at before gap reduction element distortion and time step is reducing .there is penetrations and intersection between elements despite self-contact what should be contact parameters or any other input to avoid such behaviour?
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