Dynamic plasticity of beryllium in the inertial fuel fusion capsule regime

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dc.creatorSwift, Damian C.
dc.creatorTierney, Thomas E.
dc.creatorLuo, Sheng-Nian
dc.creatorMulford, Roberta N.
dc.creatorKyrala, George A.
dc.creatorJohnson, Randall P.
dc.creatorCobble, James A.
dc.creatorTubbs, Daviid L.
dc.creatorHoffman, Nelson M.
dc.date2007-11-19
dc.date2007-11-22
dc.date.accessioned2026-07-07T08:44:11Z
dc.date.available2026-07-07T08:44:11Z
dc.descriptionThe plastic response of beryllium was investigated during loading by laser-induced shock waves, using surface velocimetry and in-situ x-ray diffraction. Results from loading by thermal x-rays (hohlraum) were consistent with more extensive studies using laser ablation. Strong elastic waves were observed, up to ~1 km/s in free surface speed, with significant structure before the arrival of the plastic shock. The magnitude and shape of the precursor could be reproduced with a plasticity model based on dislocation dynamics. Changes in lattice spacing measured from the x-ray diffraction pattern gave a direct measurement of uniaxial compression in the elastic wave, triaxial flow from the decay of the precursor, and triaxial compression in the plastic shock; these were consistent with the velocity data. The dynamic strength behavior deduced from the laser experiments was used to help interpret surface velocity data around the onset of shock-induced melting. A model of heterogeneous mixtures is being extended to treat anisotropic components, and spall.
dc.identifierhttps://arxiv.org/abs/0711.3017
dc.identifierhttp://arxiv.org/abs/0711.3017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/142568
dc.subjectMaterials Science
dc.titleDynamic plasticity of beryllium in the inertial fuel fusion capsule regime
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