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Found 4 results

  1. Hello, In material card for Johnson-Cook formulation, how I active the Iflag option to 1? The helping for the new card /MAT/LAW2 shows an option to change the Input type flag, but in file Runname_0000.rad, this option isn't available. I'm using Radioss V14. Thank you!
  2. Hi all, In the comments of the /mat/law2 Johnson-Cook, it shows The plastic hardening exponent, n must be less than or equal to 1. Why this limit? From my test data, I do the fitting, and found that the n was large than 1.
  3. I had performed simulation of Incremental sheet forming process in Hyperworks 12.0. In this analysis I compared the two material law (Law52 and Law2) keeping all conditions same. The Gurson (Law52) based model takes 26.3 hrs for simulation while J-C (Law2) based model takes 17.23 hrs for the same analysis. Why Gurson model takes more time for analysis?
  4. Dear All, if I only have yield strength, ultimate tensile strength, poisson's ratio, and density data, can I get value for a, b & n for Johnson-cook material? Thank you for your help
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