Force-Displacement Law
The contact-model formulation provides a force-displacement law relating the generalized internal force to the relative motion at the contact. The internal force and moment (\(\mathbf{F_c}\) and \(\mathbf{M_c}\)) act at the contact location in an equal and opposite sense on the two pieces (see Figure 1). The formulation is expressed in terms of a set of internal parameters, most of which are associated with rheological components (see Figure 2).
![../../../../../../_images/contact_nom1.png](../../../../../../_images/contact_nom1.png)
Figure 1: Internal force and moment acting on the two pieces at a ball-ball contact.
![../../../../../../_images/contact_nom2.png](../../../../../../_images/contact_nom2.png)
Figure 2: Icons and parameters associated with rheological components.
Was this helpful? ... | Itasca Software © 2024, Itasca | Updated: Aug 13, 2024 |