December 9, 2022 at 11:32 amOliver ThomsenSubscriber
Hi Ansys Forum :)
I would like to begin a discussion with a problem Im currently having.
Not a proffessional in ANSYS WorkBench, so I have based the major commands on discussion in here and from Youtube. I therefore guess this also could be relevant for others in similar position.
Im modelling a reinforced concrete wall and subjecting it to shear and normal force.
The BC's are based on a wall that in principle can overturn but I regulate the applied loads to not activite this failure mechanism.
The failure mechanism I want to model is the crushing of the corner and tension at the opposite edge.
I get the wall to deform so that it places all its selfweight on the corner, however no crushing or cracking behavior occur (which from my jugdement should happen). I therefore think that something is wrong with the definition of the material for the SOLID65 (which is based on commands 'stolen' from others.
Is there someone that have had similar problems and then fixed it?
I will just provide some details here:
Concrete C25, Willam Warnke material
SET,1,, ,,, ,last
SET,2,, ,,, ,last
Compression only at y=0
Dis x=0 at y=0
Have good day!
December 9, 2022 at 11:57 ampeteroznewmanSubscriber
I am not an expert on cracking/crushing simulation using SOLID65, but I noticed that your solid mesh has only 3 elements through the thickness of the wall.
I suggest you try putting 12 elememt through the thickness and see if that helps. If you simply make the element size 1/4 of the current size, the number of elements will go up by a factor of 64. If you are using the Student license, that may put the mesh over the limit on the number of nodes or elements of 128,000. If that is the case, you can sweep 12 elements through the thickness, without changing the default element size.
That will make the element thin in one direction if you don’t change the height. You should also make the bottom layer of elements have the same height as thickness. In Mechanical, you would apply a Mesh Size control on the vertical edges of the wall and use a Bias factor of 4. I'm not sure how you do that in the APDL environment.
December 9, 2022 at 12:09 pmOliver ThomsenSubscriber
Yes, maybe the problem lies within the definition of the mesh.
Im currently limited by the student license, but I will try to incorporate your ideas.
Thank you, I appreciate the guidance and quick response!
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