Dynamic response of laser ablative shock waves from coated and uncoated amorphous boron nanoparticles

Techniques are described which have been used to predict the possible effects of blast waves on ships' superstructures. The basic physical properties of a blast wave, the factors which affect these properties, and the techniques for measuring them are discussed. The interaction of shock waves with scaled rigid models is studied in the laboratory and the results are used to predict the blast loading on a full-scale structure. The dynamic response of the structure to this loading through the elastic, elasto-plastic, and plastic regimes can be calculated by reducing the structure to a system of simple single-degree-of-freedom components. These calculations are checked, when the opportunity arises, by studying the structure response on full-scale trials.

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Differences in displacement of ribs and costal interspaces in rabbits exposed to air shock waves

American Journal of Physiology-Legacy Content ◽

10.1152/ajplegacy.1964.207.4.931 ◽

1964 ◽

Vol 207 (4) ◽

pp. 931-934 ◽

Cited By ~ 2

Author(s):

Carl-Johan Clemedson ◽

Arne Jönsson

Keyword(s):

Shock Waves ◽

Dynamic Response ◽

Chest Wall ◽

High Explosive ◽

Blast Injury ◽

Motion Transducer ◽

Different Parts

The dynamic response of different parts of the chest wall of rabbits exposed to high-explosive shock waves has been recorded by means of a mechanoelectric motion transducer. The costal interspaces were found to be displaced inward with a greater amplitude and in a shorter time than the parts containing the ribs. The correlation of the "rib markings" in lung blast injury to these differences in amplitude are discussed.

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The effect of vacancies on dynamic response of single crystal Cu to shock waves

Journal of Applied Physics ◽

10.1063/1.3326941 ◽

2010 ◽

Vol 107 (5) ◽

pp. 056102 ◽

Cited By ~ 16

Author(s):

Sheng-Nian Luo ◽

Timothy C. Germann ◽

Davis L. Tonks

Keyword(s):

Shock Waves ◽

Dynamic Response ◽

Single Crystal

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Investigation of shock-wave deformation history from recovered structure

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100143754 ◽

1986 ◽

Vol 44 ◽

pp. 434-435

Author(s):

M.A. Mogilevsky ◽

L.S. Bushnev

Keyword(s):

Shock Wave ◽

Plastic Deformation ◽

Dislocation Density ◽

Shock Waves ◽

Shock Front ◽

Single Crystals ◽

Residual Deformation ◽

Deformation Structure ◽

Deformation History ◽

Deformation Velocity

Single crystals of Al were loaded by 15 to 40 GPa shock waves at 77 K with a pulse duration of 1.0 to 0.5 μs and a residual deformation of ∼1%. The analysis of deformation structure peculiarities allows the deformation history to be re-established.After a 20 to 40 GPa loading the dislocation density in the recovered samples was about 1010 cm-2. By measuring the thickness of the 40 GPa shock front in Al, a plastic deformation velocity of 1.07 x 108 s-1 is obtained, from where the moving dislocation density at the front is 7 x 1010 cm-2. A very small part of dislocations moves during the whole time of compression, i.e. a total dislocation density at the front must be in excess of this value by one or two orders. Consequently, due to extremely high stresses, at the front there exists a very unstable structure which is rearranged later with a noticeable decrease in dislocation density.

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