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  1. hummad

    Goodness of fit between test and reference data

    Hi, I have experimental data that i obtained from a uniaxial test, load vs. extension. I have also created a FEA model and simulated this test which gave me another set of load vs. extension data. I wanted to perform some sort of goodness of fit test to have a quantitative value that could be...
  2. hummad

    Isotropic Material Coefficients to anistropic coefficients

    Hi, I have a material that I have performed uniaxial tests on and obtained material properties for it in both its perpendicular and transverse direction. The material is hyperelastic and using the curve fitting option in abaqus against my uniaxial data I have obtained the coefficients for best...
  3. hummad

    Significance of Poisson's Ratio in FEA modeling

    I have a material model i created in abaqus representing a polypropylene soft knit surgical mesh the poissons ratio of polypropylene is v=0.45 (I do not know if it being soft knit has any impact in altering the v value) However when i create my model and use 0.45 (Hyperelastic model ogeden...
  4. hummad

    Help on a abaqus model (excessive distortion)

    Never mind I figured it out Thankyou anyway
  5. hummad

    Help on a abaqus model (excessive distortion)

    Hi, I have finally gotten stuck on this model I am working on and was hoping someone here could give me some input on how to proceed. The model represents a tear test occurring on a unaxial extension device (instron machine). The two materials are surgical mesh and the abdominal wall where...

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