a cracked Beam

Hamid-Reza · September 17, 2010, 10:09

Modeling a crack in Ansys:

I am working on transverse crack in beams.
I model the transverse crack using NUMMRG command in Ansys.
in which two geometries must be modeled. In the interface of the two geometries , for the uncracked area, nodes are merged to unify and for the cracked area nodes are left unchanged.
Having implemented the above procedure ,my results are no in good agreement with the theoritical ones, it would be highly appreciated if any one can recommend me a better method for modeling a cracked beam in Ansys.
inaddition, I don't know if I have to use contact element in the cracked area or not.
thanks for your time and help in advance

PSYMN · September 21, 2010, 11:33

This is more of a solver questions, and an FEA question at that. You may not get much help in this meshing forum on CFD-online. I myself am only a little familiar with crack modeling and can't really help you out.

Have you contacted ANSYS tech support? Techsupp@ANSYS.com

September 17, 2010, 10:09	a cracked Beam	#1
Hamid-Reza New Member Hamidreza Join Date: Sep 2009 Posts: 4 Rep Power: 16	Modeling a crack in Ansys: I am working on transverse crack in beams. I model the transverse crack using NUMMRG command in Ansys. in which two geometries must be modeled. In the interface of the two geometries , for the uncracked area, nodes are merged to unify and for the cracked area nodes are left unchanged. Having implemented the above procedure ,my results are no in good agreement with the theoritical ones, it would be highly appreciated if any one can recommend me a better method for modeling a cracked beam in Ansys. inaddition, I don't know if I have to use contact element in the cracked area or not. thanks for your time and help in advance

September 21, 2010, 11:33	Can't help...	#2
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	This is more of a solver questions, and an FEA question at that. You may not get much help in this meshing forum on CFD-online. I myself am only a little familiar with crack modeling and can't really help you out. Have you contacted ANSYS tech support? Techsupp@ANSYS.com

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