MAT 318 from PolyUMod models library

- October 18, 2024 at 6:11 pm
  
  valerym.m5
  Subscriber
  
  Will it be possible to use model 318 for EFG, SPG, SPH formulations ?
- October 18, 2024 at 6:14 pm
  
  valerym.m5
  Subscriber
  
  Previously, when using the polymod library, it was possible to use the following parameters:
  
  ODE solver id (ODE)
  
  Jacobian calculation method (JAC)
  
  Varying these parameters often helped solve the tasks.
  
  in the latest version LS-DYNA (318 model), these parameters are not available.
  
  Will they be available in future versions of this model?
  
  If these parameters are not available, it would be useful to understand:
  
  1. Why did they become unavailable to users?
  
  2. What values of these parameters does the program use "by default"?
- October 18, 2024 at 9:03 pm
  valerym.m5
  Subscriber
```
here is another example where the problem is solved using "old" external models from the library PolyUMod and an old version of ls-dyna.
Six_Absorber_1.2_Dr-3_Initital-TNV_Mortar-TNM.key
https://drive.google.com/file/d/12PuM3x4Dzhp3kP6pHU9Tbw-PexEOB1JG/view?usp=sharing


the same model is not solved in the new version of ls-dyna, where the built-in material model 318 is used
0_05.key
https://drive.google.com/file/d/1pJViLRThhYFLWui1N7erdZcY6pacPz_D/view?usp=sharing 


$# Material Model: PolyUMod-Three-Network (Mat318)
https://drive.google.com/file/d/14B60mxRfUwm-M6VeuTtMSjAgqwcm2jqT/view?usp=sharing
```
  ======================================
  
  E r r o r t e r m i n a t i o n 10/18/24 23:35:12
  forrtl: severe (157): Program Exception – access violation
  Image PC Routine Line Source
  lsdyna_dp.exe 00007FF787286B82 TET_FORCEU 5728 dyn38.F
  lsdyna_dp.exe 00007FF787325C9E TET_SLD1IP 4407 dyn38.F
  lsdyna_dp.exe 00007FF7899E87CB SOLDE 1694 dynpe.F
  lsdyna_dp.exe 00007FF7841299EF FEM3D_DO235 2977 fem3d_a.F
  lsdyna_dp.exe 00007FF784128F2D FEM3D_DO235D 2705 fem3d_a.F
  libiomp5md.dll 00007FF92CFB81D3 Unknown Unknown Unknown
  libiomp5md.dll 00007FF92CF06E97 Unknown Unknown Unknown
  libiomp5md.dll 00007FF92CF081F1 Unknown Unknown Unknown
  libiomp5md.dll 00007FF92CEC2754 Unknown Unknown Unknown
  lsdyna_dp.exe 00007FF784128003 FEM3D_DO235D 2672 fem3d_a.F
  lsdyna_dp.exe 00007FF7840EEAF6 FEM3D 9738 fem3d.F
  lsdyna_dp.exe 00007FF7840E6D78 SOLTN 441 fem3d.F
  lsdyna_dp.exe 00007FF7842225D8 OVERLY 277 dyn0.F
  lsdyna_dp.exe 00007FF782DA47BF LSDYNA1 965 dynm.F
  lsdyna_dp.exe 00007FF782DA4129 MAIN__ 2060 dynm.F
  lsdyna_dp.exe 00007FF790E63BE2 Unknown Unknown Unknown
  lsdyna_dp.exe 00007FF79181BC08 Unknown Unknown Unknown
  KERNEL32.DLL 00007FF9A70E257D Unknown Unknown Unknown
  ntdll.dll 00007FF9A884AA58 Unknown Unknown Unknown