deforming failure, help appreciated
Altair EmployeeHey there,
my name is Rob, I'm a German student and I just registred to this board because I have a problem that I wasn't able to solve jet. For a student project I want to simulate the impact of a brass bullet onto a block of steel.
I've modeled the components using SolidWorks, imported it into Hypermesh for the meshing and BCs and tried to solve it using LSDyna.
There were no errors during the solving process, but as I viewed the result in HyperView, I was sort of confused. It seems that the bullet isn't deformed at all, but moves the whole part of the block that isn't fixed by BCs in direction of flight.
I attached a screenshot to make it more clear.
I also attached my HyperMesh file.
https://drive.google.com/file/d/0BysiBHH8yB_uSE9oVjBxU0NQV0k/view?usp=sharing
It would be nice, if someone could provide me some information on how to solve this problem. I bet it's only a small mistake, but I didn't find it during the last 5 hours. /emoticons/default_sad.png' alt=':(' srcset='/emoticons/sad@2x.png 2x' width='20' height='20'>
Thank you in advance,
Rob
Answers
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Hi Rob
I did similar simulation a few months ago:
refer to my file . I think you set wrong material or BCs,...
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Hi tinh,
I just found my own mistake. The bullet's inital velocity wasn't linked to the bullet, so HM seemingly just moved the part it thought was the right one.
After linking both, it works just fine!
I just downloaded your file - thanks a lot. I Think there will be a lot of useful information that I can adapt.
Thank you for the quick help!
regards,
Rob.
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Hi fuyuni,
Initial velocity is not assigned to any node set in your model.
could you please cross check?
<?xml version="1.0" encoding="UTF-8"?>
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Hey Prakash Pagadal,
this is exactly what I stated above, so I guess I was right.
Thank you for the extremely fast support in this forum!
regards,
Rob
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