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By R. E. Nickell, R. A. May (auth.), J. Chandra, J. E. Flaherty (eds.)

ISBN-10: 3540126341

ISBN-13: 9783540126348

ISBN-10: 364282093X

ISBN-13: 9783642820939

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Additional info for Computational Aspects of Penetration Mechanics: Proceedings of the Army Research Office Workshop on Computational Aspects of Penetration Mechanics held at the Ballistic Research Laboratory at Aberdeen Proving Ground, Maryland, 27–29 April, 1982

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TI"'E = T 2 '. .. .... ~ ':. ~ ~ Figure 5. NABOR Simulation of a Copper Projectile Impacting a Copper Plate at 1000 m/s. Material strength effects not included. REFLECT I VE B OU NDARY ( PLAN E OF S Y...... ETRY ) .... .................. •• ........ ....... •. ......... .. .............. .. "' ...... '" '" "'II. "' ... '" '" "'''' "'''' .. "' ,,," " ",: '" • • • • • A" . . . . . . . . "'''' "' "' .................... '" "' .............. "' "' "' "'''' "' ...............

Another method of representing severe distortion is the particle-and-force method, developed at the Los Alamos Scientific Laboratory during the early sixties [7]. Although this method also makes use of variable connectivity, there are numerous differences; it does not include solids, it is not closely tied to six nearest neighbors, the search routines are different, and the force relationships are different. le try for plane strain is shown in Figure 3 _ ':he nodes represent the centers of the flexible disks, arranged in a hexagonal close-pack configuration.

AXIAL DISTAHCE (C") Fig. 1. Simulation of detonation wave moving through high-explosive within steel cylinder. Pressure isobars are in kilobars. Time is eight microseconds after detonation. 48 reliable details of stress, strain and deformation fields prevailing in these ordnance applications. However, our ability to compute such detail has far outstripped our level of understanding of the failure mechanisms involved in such applications. e. those pertinent to displacements or velocities). Most popular computer programs used in this context are able to estimate kinematic details very well indeed.

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Computational Aspects of Penetration Mechanics: Proceedings of the Army Research Office Workshop on Computational Aspects of Penetration Mechanics held at the Ballistic Research Laboratory at Aberdeen Proving Ground, Maryland, 27–29 April, 1982 by R. E. Nickell, R. A. May (auth.), J. Chandra, J. E. Flaherty (eds.)


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