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Results for “Shock”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Influence of laser shock peening on irradiation defects in austenitic stainless steels
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The effect of transverse shock propagation on the shock-to-detonation transition process for an insensitive explosive
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Pyrolysis and oxidation of methyl acetate in a shock tube: A multi-species time-history study
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Shock-tube water time-histories and ignition delay time measurements for H2S near atmospheric pressure
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Shock-induced reactions in metal nitride – Boron nanostructured composites
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Ethylenediamine Catalyzes Nitromethane Shock-to-Detonation in Two Distinct Ways
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EXPERIMENTAL AND MODELING STUDY OF THE THERMAL DECOMPOSITION OF C3–C5 ETHYL ESTERS BEHIND REFLECTED SHOCK WAVES
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The effect of nearly steady shock waves in ramp compression experiments
Abstract not provided
Design of indirectly driven, high-compression Inertial Confinement Fusion implosions with improved hydrodynamic stability using a 4-shock adiabat-shaped drive
Experimental results from indirectly driven ignition implosions during the National Ignition Campaign (NIC) [M. J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] achieved a record compression of the central deuterium-tritium fuel layer with measured areal densities up to 1.2 g/cm{sup 2}, but with significantly lower total neutron yields (between 1.5 × 10{sup 14} and 5.5 × 10{sup 14}) than predicted, approximately 10% of the 2D simulated yield. An order of magnitude improvement in the neutron yield was subsequently obtained in the “high-foot” experiments [O. A. Hurricane et al., Nature 506, 343 (2014)]. However, this yield was obtained at the expense of fuel compression due to deliberately higher fuel adiabat. In this paper, the design of an adiabat-shaped implosion is presented, in which the laser pulse is tailored to achieve similar resistance to ablation-front instability growth, but with a low fuel adiabat to achieve high compression. Comparison with measured performance shows a factor of 3–10× improvement in the neutron yield (>40% of predicted simulated yield) over similar NIC implosions, while maintaining a reasonable fuel compression of >1 g/cm{sup 2}. Extension of these designs to higher laser power and energy is discussed to further explore the trade-off between increased implosion velocity and the deleterious effects of hydrodynamic instabilities.
Dynamic x-ray diffraction to study the shock-induced [alpha-epsilon] phase transition in iron
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Molecular dynamics study of shock compression in porous silica glass.
Abstract not provided.
Dynamic Shock Response of an S2 Glass/SC15 Epoxy Woven Fabric Composite Material System.
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