Learning Forum

[mkalel]

How to import I am doing a transient thermal-structural to analyze the thermomechanical process in laser wire Additive manufacturing process. I did my transient thermal using Mechanical APDL and trying to Import the transient thermal load using workbench to perform static structural analysis.

I was able to import my thermal result from APDL to workbench and see the thermal result without any error.
so to perform static structural analysis, I pasted the time step from the thermal result as it is a coupled thermal-structural process. But I was not able to implement element kill and activation process in Static Structural analysis too . Should I do it manually or I thought I had it during thermal simulation , i think it should import the same process for structural analysis while importing thermal load and timestep.

#thermomechanical #additive manufacturing #DED #finite element modeling #APDL
#deformation #distortion #transient #thermal-structrual

 

[Bill Bulat]

I'm pretty sure you'll have to manually redefine the EKILL/ALIVE element activation sequence in the structural analysis. This aspect of element status (active or "live" versus inactive or "dead") is NOT saved to the thermal results file, so it is not automatively transmitted to the structural analysis.

You might consider inspecting the thermal ds.dat file (if the thermal analysis was set up in Mechanical) to see what commands were used to implement the element activation process. It's possible that a table array was used as described below. If you you might be able to use this same table array to specify the element activation sequence in your structural analysis. PARSAV,ALL may be used in your thermal analysis to save the paramaters to a .parm file. PARRES may be used to read those parameters into your structural analysis.