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  1. Emerry

    Fung orthotropic coefficients for hyper-elastic materials

    Thanks, i will take a look. Do you know which one of those references has the same notation that used in ABAQUS ? and which one explains how to extract the coefficients (b1111, b1122,b2222,b1133,b2233,b3333, b1212,b1313,b2323, c, D for Fung orthotropic model /or/ C10, D, k1, k2, kappa for...
  2. Emerry

    Fung orthotropic coefficients for hyper-elastic materials

    Hello & happy new year every body, IceBreakerSours> I do not implement a UMAT. You are right, Fung orthotropic law is already supported but I have to find the coefficients b_ijkl to make Abaqus working. I just developped the model in order to do curve fitting and extract the coefficients...
  3. Emerry

    Fung orthotropic coefficients for hyper-elastic materials

    Hello ! Thank you IceBreakerSours. I developped the model in order to do curve fitting. At the end of my development, i have sigma1 = f1(b_ijkl,lamda1) and sigma2 = f2(b_ijkl,lamda2) where sigma_i correspond to the stress in the two directions and lamda_i the stretches. I have sigma_i and...
  4. Emerry

    Fung orthotropic coefficients for hyper-elastic materials

    No idea ? or suggestion ?
  5. Emerry

    Fung orthotropic coefficients for hyper-elastic materials

    Hello every body, I want to simulate an elastomer material. It's orthotropic. I want to use the Fung model but i don't know how to find the coefficients : b1111, b2222, b1122, ........ I have experimental data of the material but i don't know how to extract coefficients. Anyone has an idea ?

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