Mechanical APDL-Element Birth and death

- June 29, 2023 at 2:02 am
  
  Neil
  Subscriber
- June 29, 2023 at 3:14 am
  
  Sampat Kumar
  Ansys Employee
  
  Hi Neil,
  I am not able to see your question or any screenshot attached here. Please upload the question.
  
  Regards,
  Sampat
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- June 29, 2023 at 3:17 am
  
  Neil
  Subscriber
  
  Sorry,
  I am currently using ANSYS APDL to simulate a model of a four-layer laminated board. However, I have encountered some challenges regarding the temperature heating-up to 230 degrees Celsius in the third step and the temperature cooling-down to 25 degrees Celsius in the fifth step. These temperature values do not align with the experimental data, and I am unsure if there might be an error in my settings.
  I have included the coding I used for these steps below for your reference. I would greatly appreciate your assistance in identifying any potential errors or suggesting any necessary adjustments.
  
  TREF ,25 !Global reference temperature
  !!!!!!!!Load step1!!!!!!!!!!
  /SOLU
  stabilize,constant,energy,0.001,yes,0.2
  OUTRES,all,ALL
  Nropt,full
  nSEL,S,LOC,X,0
  D,all, ux,
  ALLS
  NSEL,s,LOC,y,0
  D,all, uy
  ALLS
  NSEL,S,LOC,X,0
  NSEL,r,LOC,z, T3+T4+T5+T12,
  NSEL,r,LOC,y,0
  D,ALL,all,0
  ALLS
  ESEL,S,mat,,3
  ESEL,A,mat,,4
  ESEL,A,mat,,5
  ESEL,A,mat,,6
  ESEL,A,mat,,7
  ESEL,A,mat,,8
  ESEL,A,mat,,9
  ESEL,A,mat,,10
  ESEL,A,mat,,11
  ESEL,A,mat,,12
  EKILL,all
  allsel,all
  BF,ALL,TEMP,27.3
  
  SOLVE
  !!!!!!!!!Load step2!!!!!!!!!!
  /SOLU
  ESEL,S,mat,,3
  EAlIVE,all
  allsel,all
  BF,ALL,TEMP,28.4
  SOLVE
  !!!!!!!!!Load step3!!!!!!!!!!
  /SOLU
  BF,ALL,TEMP,230
  SOLVE
  !!!!!!!!!Load step4!!!!!!!!!!
  /SOLU
  ESEL,S,mat,,4
  EAlIVE,all
  allsel,all
  BF,ALL,TEMP,230
  SOLVE
  !!!!!!!!!Load step5!!!!!!!!!!
  /SOLU
  BF,ALL,TEMP,25
  SOLVE