Title

INFLUENCE OF SWEEPING DETONATION-WAVE LOADING ON SHOCK HARDENING AND DAMAGE EVOLUTION DURING SPALLATION LOADING

INFLUENCE OF SWEEPING DETONATION-WAVE LOADING ON SHOCK HARDENING AND DAMAGE EVOLUTION DURING SPALLATION LOADING

Authorship

Gray, George

Gray, George

I am this author

DOI

10.5151/2594-5327-34502

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Abstract

While much has been learned over the past five decades concerning the kinetics of the damage evolution and spallation in shock-loaded materials these studies have focused principally on 1-D shocked samples where the shocks produced possessed “square-topped” profiles as a function of peak stress. However, considerably less is known concerning spallation resulting from direct in-contact HE-driven, where a “Taylor-wave” shockwave profile is applied let alone a sweeping detonation Taylor-wave loading stress path where the applied stress tensor evolves as a function of obliquity. In this talk the influence of HE- driven shock loading, both 1-D and as a function of shock obliquity on the damage evolution and spallation response of Cu, 1018 steel, and Ta is compared and contrasted to that seen in each material subjected to flyer-plate driven “square-topped wave” shock profile prestraining.

While much has been learned over the past five decades concerning the kinetics of the damage evolution and spallation in shock-loaded materials these studies have focused principally on 1-D shocked samples where the shocks produced possessed “square-topped” profiles as a function of peak stress. However, considerably less is known concerning spallation resulting from direct in-contact HE-driven, where a “Taylor-wave” shockwave profile is applied let alone a sweeping detonation Taylor-wave loading stress path where the applied stress tensor evolves as a function of obliquity. In this talk the influence of HE- driven shock loading, both 1-D and as a function of shock obliquity on the damage evolution and spallation response of Cu, 1018 steel, and Ta is compared and contrasted to that seen in each material subjected to flyer-plate driven “square-topped wave” shock profile prestraining.

Keywords

1-D

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