On the Disintegration of Bodies of (Granular) Materials Governed by the Coulomb Rule

Abstract

For the purposes of analysis, granular materials are frequently idealized by stating that slip will occur when the stresses satisfy a relation depending on the angle of internal friction and cohesion. States of stress violating this rule are not permitted. From a simple mechanical model it is concluded that in dynamic problems the possibility of disintegration of the body must be considered, and that disintegration, if it occurs, is a boundary-layer phenomenon.