Learning Forum

[Yangkyu]

 Hello,

I did thermal + structural analysis for the composite cantilever. Firstly, I analyzed temperature distribution in thermal analysis. Then, this thermal analysis model (shell131) was transferred to a structural analysis model(shell181) by changing element type. So I got z-directional displacement of the composite cantilever.

Z-directional deformed shape seems to be reasonable.

However, as shown in the figure below, this displacement value is always same as the applied temperature load value. If I set the temperature load to 21 (top line in the left figure), the maximum z-directional displacement is 21. Strangely, if I set the temperature load to 30, the maximum z-directional displacement is 30. 

I will be grateful if you give me comments.  

 

[jj77]

It is the loads that get mixed (look at the BC on the static analysis and it can be seen that UZ of 21 or 30 are applied on one line). Just do this (see dldele,all,all):

 

/PREP7 
ETCHG,TTS            ! so, the this command automatically transfer shell131 to shell181
 
allsel
 
KEYOPT,1,1,0
KEYOPT,1,3,2
KEYOPT,1,8,2
KEYOPT,1,9,0

DLDELE,ALL,ALL ! Add this line
DL,1, ,ALL,0

 

….

….

 

.

[Yangkyu]

Thank you so much !!