TAGGED: error, mechanical, static-structural
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April 17, 2024 at 8:56 pm
Henry Powell
SubscriberHey all, new to ANSYS and trying to run a static structural for a power module. I keep getting a warning about the thermal expansion coefficients, as seen below. I have my enviromental reference set to 25C currently, altought I have also tested with 20C. In addition, I keep getting the same warning and error messages when I try to run, also seen below. Are these two problems related and if so, how to go about fixing them?
*** WARNING *** CP = 244.427 TIME= 01:40:28 Material property ALPX of material 7 of element 1751129 is evaluated at a temperature of 20, which is below the supplied temperature range. Temperature range checking terminates. *** ERROR *** CP = 244.427 TIME= 01:40:28 Thermal strain in element 1751129 with material 7 has caused the element to invert. Please check the thermal expansion definition and the temperature change.
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April 18, 2024 at 10:29 am
Ashish Khemka
Forum ModeratorHi Henry,
The warning message is about property being evaluated at the temperature out of range. Double check the material definitions, especially for material '7'. It is easy to accidentally miss the - in the exponent of a thermal expansion coefficient i.e. entering something like 1.7E6 instead of 1.7E-6.
Regards,
Ashish Khemka
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