Hi, I have a question about the tangential contact force in the below paper.
Fleischmann, Jonathan. "DEM-PM contact model with multi-step tangential contact displacement history." *Simulation-Based Engineering Laboratory, University of Wisconsin-Madison, Technical Report No. TR-2015-06* (2015). Equation 1 shows that F_t has the damping term which is proportional to the relative velocity.[image: t_F_1.png] So, the larger V_t, the larger F_t. And there is no upper limit. However, Figure 1 shows that the F_ has an upper limit because of the Coulomb friction.[image: t_F_2.png] My question is: How does the damping term work when F_t reaches the Coulomb friction limit? Is the damping term no longer proportional to relative velocity? Thanks, Qihan -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/b3119dce-8c72-4773-b0ed-44664c746846n%40googlegroups.com.
