Shock Parameter Effects on Material Response

Increasing the driver plate velocity and driver plate thickness for a fixed sample assembly results in an increased peak shock pressure and pulse duration. As far back as the review of Appleton [32] in 1965 on metallurgical 

Influence of Shock-Wave Deformation on the Behavior of Materials 203 

Collectively, the shock/release sequence amounts to a single cycle stress/ strain path change excursion with elastic and plastic deformation operative during both loading and unloading. 

Shock-recovery experiments by Gray [10] were conducted to assess directly if the strain-path reversal inherent to the shock contains a traditional microstructurally controlled Bauschinger effect for a shock-loaded two-phase material. Two samples of a polycrystalline Al-4 wt.% Cu alloy were shock loaded to 5.0 GPa and soft recovered in the same shock assembly to assure identical shock-loading conditions. The samples had two microstructural 

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