shock energy / metal foil / chemical decomposition reactions / energy gain / stainless steel / stainless steel mold / appropriate constitutive law / elastic-plastic mechanical constitutive law / isentropic energy / equivalent energy criteria / energy change / internal energy / gas constant / cell energy / chemical dissociation / gas equation / metal alloys / chemical reaction / phase transition energy / resultant internal energy / impact site / break-down energy / energy difference / chemical bonds / energy / /