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3 point bending test
Posted 6 oct. 2010, 08:04 UTC−4 1 Reply
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hello,
i would liek to simulate a 3 ponit bending test with large deformations to varify some experiments and to achieve an effective Youngs modulus. Unfortunately forming the model seems to be very difficult. I have to use very large points (5 mm radius) for bending. The easiest way seems to be to use only the upper "point" for application of force and for the other two roles some kind of very stiff beams, which can rotate around the roleaxis, they stand for.
Even this simple approach doesnt work. Is there a tutorial for such a problem or anything else?
What kind of solver is able to solve that problem? I treid nearly everyone i could imagine.
hope, somebody can help me.
i would liek to simulate a 3 ponit bending test with large deformations to varify some experiments and to achieve an effective Youngs modulus. Unfortunately forming the model seems to be very difficult. I have to use very large points (5 mm radius) for bending. The easiest way seems to be to use only the upper "point" for application of force and for the other two roles some kind of very stiff beams, which can rotate around the roleaxis, they stand for.
Even this simple approach doesnt work. Is there a tutorial for such a problem or anything else?
What kind of solver is able to solve that problem? I treid nearly everyone i could imagine.
hope, somebody can help me.
1 Reply Last Post 11 oct. 2010, 05:17 UTC−4
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Posted:
1 decade ago
hello again.
up to now i got some new hints for solving my problem. so there is only one little problem left. the thin layer who is bended penetrates the lower role. i dont know how to change this thing.
the comsol file is attached.
up to now i got some new hints for solving my problem. so there is only one little problem left. the thin layer who is bended penetrates the lower role. i dont know how to change this thing.
the comsol file is attached.
Attachments: