sliding with interference contact in LS-DYNA
sliding with interference contact in LS-DYNA
(OP)
I am simulating a head/helmet impact. The helmet modeled with a foam material and is fitted on the head with initial penetration. I use the contact "*CONTACT_SURFACE_TO_SURFACE_INTERFERENCE_ID".
During the impact I can see that there is no sliding between the head and the helmet regardless of what coefficiant of friction I set on static or dynamic friction.
In the contact definitions there are two curves set.
LCID1: scales the interface stiffness during dynamic relaxation
LCID2: scales the interface stiffness during transient calculation.
This is how the curves look like that I use:
During the impact I can see that there is no sliding between the head and the helmet regardless of what coefficiant of friction I set on static or dynamic friction.
In the contact definitions there are two curves set.
LCID1: scales the interface stiffness during dynamic relaxation
LCID2: scales the interface stiffness during transient calculation.
This is how the curves look like that I use:





RE: sliding with interference contact in LS-DYNA
Rob Stupplebeen