Dear all,
I am trying to model a self-contact problem in FEBio. First I used a cell growth model to a beam to generate a snake-shape configuration, and then I applied a prescribed compression strain to make it self contact, similar to the problem in https://forums.febio.org/showthread....-search_radius.
There are two contact interfaces, one for the top surface and another for the bottom surface of this snake. For both contact interfaces, the slave and master surfaces are the same (thus, a self-contact problem). The contact was defined as "sliding-elastic" with the following parameters:
<laugon>0</laugon>
<tolerance>0.2</tolerance>
<gaptol>0.1</gaptol>
<penalty>10</penalty>
<auto_penalty>1</auto_penalty>
<two_pass>0</two_pass>
<search_tol>0.01</search_tol>
<symmetric_stiffness>0</symmetric_stiffness>
<search_radius>0.01</search_radius>
...
The simulation stops when the surfaces start to self-contact. I also tried with contact type of "sliding-node-on-facet", but got the same results.
Can someone help to take a look at this?
Thanks,
Yunm
I am trying to model a self-contact problem in FEBio. First I used a cell growth model to a beam to generate a snake-shape configuration, and then I applied a prescribed compression strain to make it self contact, similar to the problem in https://forums.febio.org/showthread....-search_radius.
There are two contact interfaces, one for the top surface and another for the bottom surface of this snake. For both contact interfaces, the slave and master surfaces are the same (thus, a self-contact problem). The contact was defined as "sliding-elastic" with the following parameters:
<laugon>0</laugon>
<tolerance>0.2</tolerance>
<gaptol>0.1</gaptol>
<penalty>10</penalty>
<auto_penalty>1</auto_penalty>
<two_pass>0</two_pass>
<search_tol>0.01</search_tol>
<symmetric_stiffness>0</symmetric_stiffness>
<search_radius>0.01</search_radius>
...
The simulation stops when the surfaces start to self-contact. I also tried with contact type of "sliding-node-on-facet", but got the same results.
Can someone help to take a look at this?
Thanks,
Yunm
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