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Recent content by AminKB

  1. AminKB

    Example on using stiffness matrices in Abaqus

    Thanks for your answer, FEA way! I tried creting a single element following a code similar to the example you pointed to in your response. Following the stiffness matrix structure from the documentation as below A11 A12,A22 A13,A23,A33 A14,A24,A34,A44 A15,A25,A35,A45 A55 A16,A26,A36,A46 A56,A66...
  2. AminKB

    Example on using stiffness matrices in Abaqus

    Hi all, I'm trying to use stiffness matrices to define material behaviour. I've never used this method before and I find the documentation from Abaqus quite confusing. I've tried to use *USER ELEMENT and *MATRIX, TYPE=STIFFNESS But I'm sure I've been using them wrong as I have no idea what...
  3. AminKB

    Surface offset issue

    Useless remark.
  4. AminKB

    Surface offset issue

    Hi, I've been using SOLIDWORKS to work on a design created in CATIA. What I'm trying to do is to create several surface offsets from one side of the rod-like shape I have. That side I'm trying to offset is made up of three different surfaces. So, I knit the surfaces (using merge as well) and...
  5. AminKB

    Applying interference fit contact

    Thank you for the responses. Replacing the BC on the upper block with a 1N uniformly distributed pressure solved this issue and the model would converge quite quickly. I started having issues again when I tried tilting the cuboid in the middle a little, so the overclosure is not uniform. It...
  6. AminKB

    Applying interference fit contact

    Hi, I'm trying to model a cuboid sandwiched between two less stiff blocks, as shown in the cross-sectional view below. This model is intended for some iterative analysis where the parts are expected to have an arbitrary level of initial overclosure. I applied a surface-to-surface, hard...
  7. AminKB

    Intradiscal pressure in ABAQUS

    I wasn't a 100% sure Press and hydrostatic pressure are the same. This helps a lot. Thanks a lot. [bigsmile]
  8. AminKB

    Intradiscal pressure in ABAQUS

    Hi, I'm modelling and intact spinal segment under pure axial compression. In order to indirectly validate with results from literature I need to find the intradiscal pressure (hydrostatic pressure of the nucleus as I understand). The nucleus is defined as an incompressible isotropic...
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