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  1. sdata

    Density and Elasticity Modulus changes through thickness

    Hello Colleagues, I'm working on modeling a FGM plate in which Density and Elasticity Modulus changes through thickness of plate by an exponential function. The following USDFLD subroutine is copied from thread799-295995. I have some questions to complete this subroutine: 1. How Abaqus will...
  2. sdata

    changing density for FGM in umat

    Hello friends, Here is the Abaqus user subroutine for Functionally Graded Material with direct integration method. This Umat is based on S.H.Song's Umat. Obviously the coefficient AAA in calculating E is the ratio of young moduli of two sides of the plate. With this method, one can change young...

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