I used user equation of state subroutine, why does the temperature of the material not change?

- December 6, 2020 at 12:48 pm
  limandinuo
  Subscriber
  I modified the user subroutine mdeos_user_1.f90, wrote a custom ideal state equation, and injected energy through a custom energy deposition subroutineSUBROUTINE EXSIE3 (DSIE).
  Size :20mm*10mm*10mm
- December 8, 2020 at 2:22 pm
  
  limandinuo
  Subscriber
  
  I found that the temperature can be modified in the material strength model subroutine:mdstr_user_1.f90n n
- December 10, 2020 at 1:07 pm
  
  KR
  Administrator
  
  Hi,nI'm glad that you were able to resolve this issue. Thank you for sharing this information with the forum. This is really useful.nBest,nKarthikn
- December 10, 2020 at 6:13 pm
  
  Chris Quan
  Ansys Employee
  
  Hi Limandinuo, temperature is calculated from internal energy and specific heat. Make sure the specific heat is not zero and has a reasonable value in your user EOS subroutine. n
- December 14, 2020 at 9:48 am
  
  limandinuo
  Subscriber
  
  Hi Limandinuo, temperature is calculated from internal energy and specific heat. Make sure the specific heat is not zero and has a reasonable value in your user EOS subroutine.https://forum.ansys.com/discussion/comment/99986#Comment_99986
  nThank you very much for your answer!!!!!!! This probelom has bothered me for a long time.ArrayI think you are right ,i should not modify the temperature directly in mdstr_user_1.f90nnBut the specific heat I set in the mdeos_user_1.f90 （equation of state） does not seem to work . So I asked a new question about thatArray . Would you please help me to answer it ? Hope it won't disturb youn the question about specific heat :https://forum.ansys.com/discussion/22860/autodyn-user-subroutine-the-specific-heat-capacity-set-in-the-modes-user-1-f90-does-not-work/p1?new=1n
- December 15, 2020 at 4:25 pm
  
  Chris Quan
  Ansys Employee
  
  I posted my answer under your another postn

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