Error with Steinberg-Guinan Strength model and other models

- November 19, 2023 at 5:52 am
  
  Alex Horwege
  Subscriber
  
  Hello,
  I have been using Johnson Cook models in my impact analyses, and I wanted to try some other constitutive models. I am running into an error where the material models are not recognized, including the models that come built-in with ANSYS Workbench (STEEL V250 for example, with Steinberg-Guinan strength model and Mie-Gruneisen EOS).
  How can I implement these models in LS-DYNA for ANSYS Workbench? Here is the error code from the Solver output below. It looks like it simply is not detecting the material model at all. I am currently using it with an SPH mesh, but I get the same error with other mesh methods too.
  
  Beginning of keyword reader                                   11/17/23 17:55:35
  
  *** Error 10157 (KEY+157)
       MAT 2 is not found
  
  *** Error 10304 (KEY+304)
       CHECKING MATERIAL INPUT Part ID= 2
       PART ID 2 with
       SECTION ID 2 and
       MATERIAL ID 2 does not exist.
       This is PART 2 in the order of input.
  
  *** Error 10133 (KEY+133)
       input data failed with: 4 errors
  E r r o r   t e r m i n a t i o n                             11/17/23 17:55:36
- November 20, 2023 at 11:55 am
  
  Ram Gopisetti
  Ansys Employee
  
  Hi,
  The closest match for such material in LS-Dyna is MAT_011,
  You may want to check that material definition first, then use Command snippets under the scoped body.
  Native implementation is not made yet.
  Cheers, Ram