Accession Number:

ADA458850

Title:

Mechanical, Mathematical, and Computer Modeling in Penetration Mechanics - IV (Hybrid Models for Nanostructured Ceramics - II)

Descriptive Note:

Final rept.

Corporate Author:

NATIONAL ACADEMY OF SCIENCES (UKRAINE) FRANTZEVICH INST FOR PROBLEMS IN MATERIALS SCIENCE

Personal Author(s):

Report Date:

2006-11-30

Pagination or Media Count:

65.0

Abstract:

Penetration of non-deformable projectiles in continuum with various rheological properties has been of interest to researchers for a long time. The first modeling representations of penetration were formulated in XVIII-XIX centuries in Eulers, Poncelets, Wuichs works, etc. Analysis of these results can be found in A.J. Sagomonjans monographs. In conjunction with development of more exact and effective technical means in the last two decades, the interest in this problem has considerably increased, and this is proved by works of Voejkova and Sagomonjan 1985, Alojan 1985, Liapykhin et al. 1993, Bahrah et al. 1992, Forrestal et al. 1988, 1992, 2000, Dikshit and Sundararajan 1992, Piekutowski et al. 1999, Warren and Forrestal 1998, Warren 2000, Yossifon et al. 2001, Chen and Li 2002. The analysis of the modern state of the problem of analytical modeling of high-velocity penetration of non-deformable projectiles in targets can be found in works by Forrestal et al., Warren and Forrestal, Yarin et al., Yossifon, Chen and Li. From this analysis, it follows that at present there is a deficiency of relatively simple analytical models using natural, physical, and geometrical parameters of projectiles and targets and with a small number of fitting parameters. In this study, we have built and investigated a new model of penetration of non-deformable projectiles of various shapes in elastic-plastic and elastic-brittle materials.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Ammunition and Explosives
  • Target Direction, Range and Position Finding

Distribution Statement:

APPROVED FOR PUBLIC RELEASE