Shock wave structures in porous media accounting for micro-inertia effects

Abstract eng:
The present work deals with steady shock waves propagation in porous media containing a homogeneous population of voids. The matrix material is representative of some aluminium, assumed here non linear elastic viscoplastic, but the analysis is general and could be applied to any porous metallic materials. The process is assumed quasiisentropic; the effect of the temperature is disregarded, so that our approach is valid for shocks of moderate stress amplitudes. Quasi-static compression curves (no rate effect) are used to describe the constitutive response of the porous medium under various stress levels. The Rayleigh line defines the shock path. Our results show that micro-inertia effects bring an important contribution to the shock wave structure.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket