Need help in modeling indentation stress relaxation of cartilage

[eldo97]

Magic. So I have increased my penalty parameter in the symmetry plane. And also switched from BFGS to Broyden. My two models are now both with a 45 degree indenter but one model is the 3 degree tissue wedge and the other is the 90 degree tissue wedge. However I'm still confused with what value my load curve should be for both.

For the 3 degree wedge should it be 1/120 of the force I want to apply. And for the 90 degree wedge should it be 1/4 of the force I want to apply?

Or for both models is the load curve 1/8 of the force I want to apply as the indenter is only 45 degrees?

Iv attached my files if that's any help.

[ateshian]

Hi Lewis,

For the 3 degree wedge should it be 1/120 of the force I want to apply.

Yes.

And for the 90 degree wedge should it be 1/4 of the force I want to apply?

Yes.

Best,

Gerard