Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

thernal expansion strain

Status
Not open for further replies.

PaulCC

Mechanical
Jun 17, 2016
1
Hello,

I am having a problem with a simple 2D model: I submit a square plate with an expansion coefficient alpha=10^-6 to a uniform temperature T=50. I use only a ENCASTRE boundary condition on one corner. When I ask Abaqus for strain, it gives me E11=E22=70*10^-6. I was expecting it to be alpha*T=50*10^-6. ABAQUS says that my thermal strain ETH is 50*10^-6 but it says that there is also an elastic strain EE=20*10^-6

Does anyone have an idea to explain this result? Where does EE come from?

Thank you in advance

Paul
 
Replies continue below

Recommended for you

I think I know whats going on. What element type is used?
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor