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.
Temperature dependent parameter in global material
Posted Dec 17, 2014, 7:07 a.m. EST Materials Version 5.0 0 Replies
Please login with a confirmed email address before reporting spam
I used to have a custom material, defined within the component's materials (i.e. like any material in COMSOL before version 5), with a temperature dependent coefficient of thermal expansion. To do so, I defined a function CTE_B270 inside the Basic property group (see Picture 1), and set the coefficient of thermal expansion of the material to CTE_B270(T).
Now, I wanted to exploit the new switches introduced with COMSOL 5, so I wanted to move the same material in the Global -> Materials group. However, if I simply drag the same material to the new folder, the value of coefficient of thermal expansion, CTE_B270(T), becomes orange and I get an error "Unknown variable T". I tried to move the function from inside the material to the Global functions, but nothing changes.
How should I declare or call the function in order to correctly pass the temperature parameter to it?
Best regards,
Mikhail
Attachments:
Hello Mikhail Asiatici
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.