Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Solid Mechanics - Linear Elastic Material - Thermal Expansion
Posted 8 apr 2013, 22:31 GMT-4 Modeling Tools & Definitions, Parameters, Variables, & Functions, Structural Mechanics Version 4.3a 1 Reply
Please login with a confirmed email address before reporting spam
In the solid Mech - Linear Elastic Material - Thermal expansion node, there are two tabs: Model Inputs & Strain reference temperature, which both contain places to write temperature values. What is the difference between two of them? If I heat my sample from 300K to 700K, what should I write in the Model Input? What about Strain reference temperature?
1 Reply Last Post 9 apr 2013, 14:42 GMT-4
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi
one is for the current temperature (scalar or filed), the other (reference) is the temperature (scalar or field) of the model for "0" stress.
Example if you heat up two blocks of different material too 100°C and bound them "stress-les"s at theat thermperature, then this is the reference temperature. if you now want to see how these parts bend at room temp 20°C then this is the current temperature, (wen you want to observe your stressed state)
--
Good luck
Ivar
one is for the current temperature (scalar or filed), the other (reference) is the temperature (scalar or field) of the model for "0" stress.
Example if you heat up two blocks of different material too 100°C and bound them "stress-les"s at theat thermperature, then this is the reference temperature. if you now want to see how these parts bend at room temp 20°C then this is the current temperature, (wen you want to observe your stressed state)
--
Good luck
Ivar