Element Stress with CCX

kuhl

Hi all,

sometimes I have to model adhesive layers as solid. When possible, I try to model matching meshes for the parts that have to be bonded and extrude the adhesive layer. Then I merge nodes so the adhesive layer is connected.
For the internal solver that works fine, as I can choose between node values and element values in the results.
If I have to use CCX, I don't get that choice and only node values are available which means that the stress shown at the interface between the adhesive and the bonded parts is way off due to its much lower elastic modulus.
Currently, my workaround is to use contact to connect the adhesive wich can be annoying sometimes.

Internal solver (element values), top: connected by contact, bottom: merged meshes
pink: above range


CCX (node values), top: connected by contact, bottom: merged meshes
pink: above range, grey: below range


Is there a way to get element values with CCX solver or some other way to evaluate the stress in the adhesive?

Victor

Not in Mecway's post-processor but CCX can output stress at integration points to the human-readable .dat file by putting the following in the *STEP section (CCX -> custom step contents in Mecway):

*EL PRINT,ELSET=EALL
S

and having an ELSET (element selection in Mecway) called EALL containing all the elements you want.

It's just tensor components but you could import to a spreadsheet to calculate von Mises.

kuhl

Ok, thanks Victor!