Consequently the strains and deformations of the bodies are varying with position too.

The forces cause deformation of the body's shape.

Therefore, the stresses considered in continuum mechanics are only those produced by deformation of the body, sc.

The first simply restricts the motion and deformation of the bodies by the assumption that no penetration can occur.

At the end of its journey this energy is converted into heat, into further movement or deformation of the bodies in collision.

For large deformations of the body, the stress in the cross-section is calculated using an extended version of this formula.

The rigid-body Roche limit is a simplified calculation for a spherical satellite, where the deformation of the body by tidal effects is neglected.