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  1. indebtanup

    USDFLD routine with built-in VUMATs

    Hi there, I'm modeling a ceramic plate using the Johnson Holmquist material model which is available as a built-in user material for Abaqus (i.e., via a VUMAT subroutine that is built-in and whose source code cannot be edited). The material model is called in the input file as below...
  2. indebtanup

    How to define a RADIAL distributed load on an internal edge of a shell

    Hi, I'm modelling a circular beam as shown in the figure below. I'm trying to apply a radially distributed load (aka "normal" traction) on an INTERNAL edge (at r=2) of units Force/Distance. I can't apply a shell edge load since this edge is internal. When I apply a Pressure load, I get an...
  3. indebtanup

    USDFLD-Modelling functionally graded materials in ABAQUS

    I'm trying to model a simple beam with the Young's modulus varying with position. I've followed all the instructions for the USDFLD detailed by akabarten in the posts: http://www.eng-tips.com/viewthread.cfm?qid=385982 and http://www.eng-tips.com/viewthread.cfm?qid=295995 The relationship...

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