meshing

[kusilie]

hi, it's me again, Russel.Currently i've using abaqus to analyze the thermal strees on the brake disc rotor surface.The problem is if i used the higher value of meshing the result temperature will exceed more than 4000 Celsius but if i used the lower meshing for example 5 global size compare to the earlier which is 0.01 global size the result temperature is not more than 700 Celsius. Can anyone help me on this..

 

[corus]

I'm not sure how you've managed to link temperature with mesh size, unless you've got some indeterminably case of applying a heat flux with no other boundary condition. I'd try and look at a simple case of using a 1D slice of the model where you can check the results from your model with a hand calculation.

corus

 

[kusilie]

for boundary condition i used symmetry/antisymmetry/encastre. the only thing that ive change is only the global size.

 

[corus]

Encastre conditions apply to stress analysis. It's the boundary conditions you apply to derive your temperatures that is the important factor.

corus

 

[kusilie]

owh...then what type the boundary conditions suitable?fiy, my research is to analyze the thermal stress analysis on the brake disc surface. Only one fraction over thirty two section of disc brake rotor has been created