Partition a volume mesh (bone)
Partition a volume mesh (bone)
(OP)
Hello all,
I want to simulate a three point bending test in Abaqus for a mouse bone. I use Mimics and 3-matic for modelling and volume mesh and then I import the file to abaqus for the FEA. My question is how can I create 2 partitions that divide the bone in two parts before importing it to Abaqus. The reason that I want to do that is because I want to constraint exactly the cross-section in the middle of the bone to move to the loading direction. I have tried it by selecting manually a ring of elements and then apply to them the boundary conditions but this will not give reliable results since I want to perform the 3pbt in different bones and then compare. I couldn't select the same ring of elements manually of course.
Any ideas??
Thank you
I want to simulate a three point bending test in Abaqus for a mouse bone. I use Mimics and 3-matic for modelling and volume mesh and then I import the file to abaqus for the FEA. My question is how can I create 2 partitions that divide the bone in two parts before importing it to Abaqus. The reason that I want to do that is because I want to constraint exactly the cross-section in the middle of the bone to move to the loading direction. I have tried it by selecting manually a ring of elements and then apply to them the boundary conditions but this will not give reliable results since I want to perform the 3pbt in different bones and then compare. I couldn't select the same ring of elements manually of course.
Any ideas??
Thank you





RE: Partition a volume mesh (bone)
RE: Partition a volume mesh (bone)
You have to bring the geometry to /CAE, partition that and then mesh it in /CAE.
RE: Partition a volume mesh (bone)
RE: Partition a volume mesh (bone)
*********************************************************
Are you new to this forum? If so, please read these FAQs:
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083
RE: Partition a volume mesh (bone)
I attach 2 pictures of my setup. The boundary conditions I have already set are:
1) The supporting beams cannot move in any direction
2) The loading beam can move only in y direction for 1 mm. (It's a mouse bone with diameter ~2mm). So I apply a displacement and not a load in my set-up and I measure the reaction force to create the Force-displacement curve that I need for my experiment
3) There is a ring of element under the loading beam that is constrained to move only in the y-direction. These elements are chosen manually with a drag-box.
The concept of my general question is:
I'll test mice bones of different ages and I want to avoid limitations coming from boundary conditions that are not defined the same way. If I choose ring of elements in 24 different samples that I have, they will never be selected correctly in the middle of the bone, or exactly under the loading beam or the same number of elements or or or...
RE: Partition a volume mesh (bone)
I hope this helps.
Rob
Rob Stupplebeen
Rob's Engineering Blog
Rob's LinkedIn Profile
RE: Partition a volume mesh (bone)
*********************************************************
Are you new to this forum? If so, please read these FAQs:
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083