Abstract

This paper studies the mechanism of shock formation from generalised simple waves in the case of an isotropic incompressible hyperelastic material. Fast and slow waves are identified and it is established that slow simple waves cannot tend to shocks on the wavefront. The time and position of occurrence of shocks when they do form is investigated with the aid of generalised Riemann invariants and a circularly polarised slow wave is identified. The special case of plane shear waves is commented upon.

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