Rigid wall contact

1. Flexible Body - Rigid Wall

2. Rigid Body - Rigid Wall

εr . . . penaltyfactor rigid body

εs . . . penaltyfactor rigid wall

Spring forces: Fi = εs · δi

Options of the stonewalls:

• initial mass and velocity
• fixed in space
• velocity or displacement specified by a load curve

A stonewall may extent to infinity or the extent may be finite.

Friction:

• frictionless sliding after contact
• no sliding after contact
• coulomb friction Fc = µ · FN
• orthotropic frictional coe cients by defining fixed vectors
• orthotropic frictional coe cients by defining nodes

Figure 7.1: Generalized Stonewalls