Shock propagation and attenuation in Green River oil shale

18th APS-SCCM; 24th AIRAPT

Grady, D.E.^1

Applied Research Associates, Southwest Division, 4300 San Mateo Blvd NE, Albuquerque

NM

87110, United States^1

关键词: Hugoniot elastic limit;    Propagation distances;    Scattering model;    Shock attenuation;    Shock propagation;    Stress wave measurements;    Stress wave scattering;    Velocity interferometer;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/500/11/112030/pdf
DOI  :  10.1088/1742-6596/500/11/112030

来源: IOP

【 摘 要 】

Shock waves produced by planar impact of thin plates onto samples of oil shale are monitored with time-resolved velocity interferometer diagnostics. Peak shock stresses are below the Hugoniot elastic limit. Stress wave measurements at successive sample thickness are analysed to determine the experimental shock energy attenuation with propagation distance. Shock attenuation is attributed to stress wave scattering at planes of oil shale kerogen within the shale matrix. Wave scattering from planar defects are evaluated from a shock physics perspective and a scattering model is constructed that sensibly reproduces the experimental observation of shock energy attenuation.