Correct Material Definition

- February 6, 2025 at 3:47 pm
  
  p.wilk
  Subscriber
  
  Hello guys,
  
  I am using custom material properties in Engineering Data but for some reason when I run my simulation with that data i get following error:
  
  I can't manage to figure out the error, do you have any ideas?
  
  Those are the properties I defined:
  
  I have tripplechecked every single tabular data, I dont have any duplicate temperatures in one table.
- February 11, 2025 at 3:14 pm
  
  dlooman
  Ansys Employee
  
  Could you provide screen shots of your tabular input? Sometimes it would be convenient to specify a step change in a property vs temperature, but it's not supported.
- February 12, 2025 at 11:13 am
  
  Akshay Singh
  Ansys Employee
  
  HI, You can also check your dat file and search for keyword MPTEMP.
  Check carefully as to where this command is associated.
  dat file sends commands in a sequence so if you check a few lines near the problematic MPTEMP command, you will be able to pinpoint the cause of the error.
  - February 17, 2025 at 10:18 am
    
    p.wilk
    Subscriber
    
    I have added a snippet of the ds.dat file, could the marked lines be the problem? I dont see those lines when I'm in Engineering Data but they appear afterwards :/
- February 17, 2025 at 7:35 pm
  
  dlooman
  Ansys Employee
  
  Those empty commands are to zero out the previous temperature table. There only needs to be one of them, but they aren't the problem. You didn't show all of your MPTEMP commands.
  - February 18, 2025 at 11:54 am
    
    p.wilk
    Subscriber
    
    You are right, sorry. Here is all MPTEMP commands (its long sorry)
    
    /com,*********** Send Materials ***********
    Temperature = 'TEMP' ! Temperature
    MPTEMP,,,,,,,,
    MPTEMP,1,20
    MPTEMP,2,226.85
    MPTEMP,3,726.85
    MPTEMP,4,1226.85
    MPTEMP,5,1726.85
    MPTEMP,6,2226.85
    MPDATA,DENS,1, ,15700,15650,15525,15400,15275,15150, ! kg m^-3
    MPTEMP,,,,,,,,
    MPTEMP,,,,,,,,
    MPTEMP,1,-223.15
    MPTEMP,2,-173.15
    MPTEMP,3,-123.15
    MPTEMP,4,-73.15
    MPTEMP,5,-23.15
    MPTEMP,6,7.88860905221012e-31
    MPTEMP,7,7.88860905221012e-31
    MPTEMP,8,24.85
    MPTEMP,9,26.85
    MPTEMP,10,76.85
    MPTEMP,11,126.85
    MPTEMP,12,176.85
    MPTEMP,13,226.85
    MPTEMP,14,276.85
    MPTEMP,15,326.85
    MPTEMP,16,376.85
    MPTEMP,17,426.85
    MPTEMP,18,476.85
    MPTEMP,19,526.85
    MPTEMP,20,576.85
    MPTEMP,21,626.85
    MPTEMP,22,676.85
    MPTEMP,23,726.85
    MPTEMP,24,826.85
    MPTEMP,25,926.85
    MPTEMP,26,1026.85
    MPTEMP,27,1126.85
    MPTEMP,28,1226.85
    MPTEMP,29,1326.85
    MPTEMP,30,1426.85
    MPTEMP,31,1526.85
    MPTEMP,32,1626.85
    MPTEMP,33,1726.85
    MPTEMP,34,1926.85
    MPTEMP,35,2126.85
    MPTEMP,36,2326.85
    MPTEMP,37,2526.85
    MPTEMP,38,2726.85
    MPDATA,EX,1, ,706750000000,706750000000,706710000000,706550000000,706140000000,7.88860905221012e-31,
    MPDATA,EX,1, ,7.88860905221012e-31,705470000000,705430000000,704410000000,703090000000,701500000000,
    MPDATA,EX,1, ,699650000000,697590000000,695330000000,692900000000,690330000000,687620000000,
    MPDATA,EX,1, ,684790000000,681860000000,678830000000,675730000000,672550000000,665990000000,
    MPDATA,EX,1, ,659230000000,652280000000,645180000000,637970000000,630640000000,623230000000,
    MPDATA,EX,1, ,615730000000,608170000000,600560000000,585170000000,569630000000,553950000000,
    MPDATA,EX,1, ,538170000000,522310000000, ! Pa
    MPTEMP,,,,,,,,
    MPTEMP,,,,,,,,
    MPTEMP,1,-223.15
    MPTEMP,2,-173.15
    MPTEMP,3,-123.15
    MPTEMP,4,-73.15
    MPTEMP,5,-23.15
    MPTEMP,6,7.88860905221012e-31
    MPTEMP,7,7.88860905221012e-31
    MPTEMP,8,24.85
    MPTEMP,9,26.85
    MPTEMP,10,76.85
    MPTEMP,11,126.85
    MPTEMP,12,176.85
    MPTEMP,13,226.85
    MPTEMP,14,276.85
    MPTEMP,15,326.85
    MPTEMP,16,376.85
    MPTEMP,17,426.85
    MPTEMP,18,476.85
    MPTEMP,19,526.85
    MPTEMP,20,576.85
    MPTEMP,21,626.85
    MPTEMP,22,676.85
    MPTEMP,23,726.85
    MPTEMP,24,826.85
    MPTEMP,25,926.85
    MPTEMP,26,1026.85
    MPTEMP,27,1126.85
    MPTEMP,28,1226.85
    MPTEMP,29,1326.85
    MPTEMP,30,1426.85
    MPTEMP,31,1526.85
    MPTEMP,32,1626.85
    MPTEMP,33,1726.85
    MPTEMP,34,1926.85
    MPTEMP,35,2126.85
    MPTEMP,36,2326.85
    MPTEMP,37,2526.85
    MPTEMP,38,2726.85
    MPDATA,NUXY,1, ,0.234,0.234,0.234,0.234,0.234,0.234,
    MPDATA,NUXY,1, ,0.234,0.234,0.234,0.234,0.234,0.234,
    MPDATA,NUXY,1, ,0.234,0.234,0.234,0.234,0.234,0.234,
    MPDATA,NUXY,1, ,0.234,0.234,0.234,0.234,0.234,0.234,
    MPDATA,NUXY,1, ,0.234,0.234,0.234,0.234,0.234,0.234,
    MPDATA,NUXY,1, ,0.234,0.234,0.234,0.234,0.234,0.234,
    MPDATA,NUXY,1, ,0.234,0.234,
    MPTEMP,,,,,,,,
    MPTEMP,,,,,,,,
    MPTEMP,1,-223.15
    MPTEMP,2,-173.15
    MPTEMP,3,-123.15
    MPTEMP,4,-73.15
    MPTEMP,5,-23.15
    MPTEMP,6,24.85
    MPTEMP,7,26.85
    MPTEMP,8,76.85
    MPTEMP,9,126.85
    MPTEMP,10,176.85
    MPTEMP,11,226.85
    MPTEMP,12,276.85
    MPTEMP,13,326.85
    MPTEMP,14,376.85
    MPTEMP,15,426.85
    MPTEMP,16,476.85
    MPTEMP,17,526.85
    MPTEMP,18,576.85
    MPTEMP,19,626.85
    MPTEMP,20,676.85
    MPTEMP,21,726.85
    MPTEMP,22,826.85
    MPTEMP,23,926.85
    MPTEMP,24,1026.85
    MPTEMP,25,1126.85
    MPTEMP,26,1226.85
    MPTEMP,27,1326.85
    MPTEMP,28,1426.85
    MPTEMP,29,1526.85
    MPTEMP,30,1626.85
    MPTEMP,31,1726.85
    MPTEMP,32,1926.85
    MPTEMP,33,2126.85
    MPTEMP,34,2326.85
    MPTEMP,35,2526.85
    MPTEMP,36,2726.85
    MPDATA,C,1, ,15.93,66.94,104.56,135.15,160.68,180.54,
    MPDATA,C,1, ,181.35,197.39,208.52,216.74,223.17,228.43,
    MPDATA,C,1, ,232.82,236.65,240.07,243.13,245.94,248.54,
    MPDATA,C,1, ,251,253.34,255.54,259.62,263.45,267.03,
    MPDATA,C,1, ,270.4,273.61,276.63,279.49,282.24,284.85,
    MPDATA,C,1, ,287.35,291.94,296.03,299.7,302.92,305.73, ! J kg^-1 C^-1
    MPTEMP,,,,,,,,
    MPTEMP,,,,,,,,
    MPTEMP,1,-223.15
    MPTEMP,2,-173.15
    MPTEMP,3,-123.15
    MPTEMP,4,-73.15
    MPTEMP,5,-23.15
    MPTEMP,6,24.85
    MPTEMP,7,26.85
    MPTEMP,8,76.85
    MPTEMP,9,126.85
    MPTEMP,10,176.85
    MPTEMP,11,226.85
    MPTEMP,12,276.85
    MPTEMP,13,326.85
    MPTEMP,14,376.85
    MPTEMP,15,426.85
    MPTEMP,16,476.85
    MPTEMP,17,526.85
    MPTEMP,18,576.85
    MPTEMP,19,626.85
    MPTEMP,20,676.85
    MPTEMP,21,726.85
    MPTEMP,22,826.85
    MPTEMP,23,926.85
    MPTEMP,24,1026.85
    MPTEMP,25,1126.85
    MPTEMP,26,1226.85
    MPTEMP,27,1326.85
    MPTEMP,28,1426.85
    MPTEMP,29,1526.85
    MPTEMP,30,1626.85
    MPTEMP,31,1726.85
    MPTEMP,32,1926.85
    MPTEMP,33,2126.85
    MPTEMP,34,2326.85
    MPTEMP,35,2526.85
    MPTEMP,36,2726.85
    MPDATA,ALPX,1, ,2.25e-06,3.56e-06,5.51e-06,7.37e-06,8.92e-06,1.01e-05,
    MPDATA,ALPX,1, ,1.017e-05,1.117e-05,1.196e-05,1.26e-05,1.312e-05,1.355e-05,
    MPDATA,ALPX,1, ,1.391e-05,1.422e-05,1.45e-05,1.474e-05,1.496e-05,1.515e-05,
    MPDATA,ALPX,1, ,1.534e-05,1.551e-05,1.567e-05,1.598e-05,1.625e-05,1.651e-05,
    MPDATA,ALPX,1, ,1.676e-05,1.7e-05,1.724e-05,1.747e-05,1.771e-05,1.795e-05,
    MPDATA,ALPX,1, ,1.818e-05,1.867e-05,1.917e-05,1.97e-05,2.025e-05,2.082e-05, ! C^-1
    MPTEMP,,,,,,,,
    MPAMOD,1,20, ! C
    MPTEMP,,,,,,,,
    MPTEMP,1,0
    MPTEMP,2,200
    MPTEMP,3,400
    MPTEMP,4,600
    MPTEMP,5,800
    MPTEMP,6,1000
    MPDATA,KXX,1, ,93.62,73.4,64.89,55.32,51.06,48.94, ! W m^-1 C^-1
    MPTEMP,,,,,,,,
    MP,UVID,1,e58daecb-7460-453d-b09e-d460cc39f404
- February 18, 2025 at 4:18 pm
  
  dlooman
  Ansys Employee
  
  These temperatures appear to be identical:
  MPTEMP,6,7.88860905221012e-31
  MPTEMP,7,7.88860905221012e-31

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