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Strain reference Temperature
Posted 2012年8月10日 GMT-4 09:49 1 Reply
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Hi
I am using transient themal stress analysis (ts) to solve a 3D problem in Comsol 4.2. My understading is that in order to compute the thermal stresses inside the material geometry, the ts model must require strain refrence temperature as input. The Strain Reference Tempertaure model input parameter under Thermal Linear Elastic 1 node, however is grayed out in 3D model. It is active only for 1D and 2D cases. I could possibly be missing something. Will greatly appreciate if someone could throw some light on to this issue.
With many Thanks,
R.K.
PS: Regardlesss of this input, the COMSOL is able to solve the problem and generate the temerature and stress distributions.
I am using transient themal stress analysis (ts) to solve a 3D problem in Comsol 4.2. My understading is that in order to compute the thermal stresses inside the material geometry, the ts model must require strain refrence temperature as input. The Strain Reference Tempertaure model input parameter under Thermal Linear Elastic 1 node, however is grayed out in 3D model. It is active only for 1D and 2D cases. I could possibly be missing something. Will greatly appreciate if someone could throw some light on to this issue.
With many Thanks,
R.K.
PS: Regardlesss of this input, the COMSOL is able to solve the problem and generate the temerature and stress distributions.
1 Reply Last Post 2012年8月13日 GMT-4 02:31
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Posted:
1 decade ago
Hi
in my V4.3 its not greyed, apart for Thermal Linear Viscoelastic Material node, for which you need to first "turn on" the Thermal expansion by a tick mark
Could it be that you have several "T" dependent variables from other physics and COMSOl has choosen anothe T as the driving value ??
--
Good luck
Ivar
in my V4.3 its not greyed, apart for Thermal Linear Viscoelastic Material node, for which you need to first "turn on" the Thermal expansion by a tick mark
Could it be that you have several "T" dependent variables from other physics and COMSOl has choosen anothe T as the driving value ??
--
Good luck
Ivar