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Title: Computational modeling of thin ceramic tiles backed by thin substrates

Abstract

Building on the work of Wilkins, Eulerian hydrocode calculations were performed with ceramic models to examine the behavior of thin ceramic tiles backed by a thin substrate. In order to match ballistic limit data it was necessary to include a pressure dependent flow stress for failed ceramic. Reasonable agreement is found between the modified model and ballistic limit data for a simulated armor piercing round impacting an AD-85 alumina/6061T6 aluminum laminate. Based upon this success, the modified model was used to examine the performance of a SiC/6061T6 aluminum laminate when impacted by an M80 ball round (7.62 mm) at muzzle velocity. The projectile undergoes large deformation, as does the aluminum backing sheet. The computational results indicate, for the M80 projectile impacting at muzzle velocity, that the ballistic limit thickness for the SiC/aluminum laminate should weigh 10% less than the ballistic limit thickness for steel. The talk will include a video tape of calculations.

Authors:
; ;  [1]
  1. Sowthwest Research Institute, San Antonio, TX (United States)
Publication Date:
OSTI Identifier:
175429
Report Number(s):
CONF-950686-
TRN: 95:006111-0415
Resource Type:
Conference
Resource Relation:
Conference: Joint applied mechanics and materials summer meeting, Los Angeles, CA (United States), 28-30 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of AMD - MD `95: Summer conference; PB: 520 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; SILICON CARBIDES; DEFORMATION; ALUMINIUM; ARMOR; FLOW STRESS; THICKNESS; VELOCITY; COMPOSITE MATERIALS; IMPACT TESTS; PROJECTILES

Citation Formats

Walker, J D, Anderson, Jr, C E, and Cox, P A. Computational modeling of thin ceramic tiles backed by thin substrates. United States: N. p., 1995. Web.
Walker, J D, Anderson, Jr, C E, & Cox, P A. Computational modeling of thin ceramic tiles backed by thin substrates. United States.
Walker, J D, Anderson, Jr, C E, and Cox, P A. 1995. "Computational modeling of thin ceramic tiles backed by thin substrates". United States.
@article{osti_175429,
title = {Computational modeling of thin ceramic tiles backed by thin substrates},
author = {Walker, J D and Anderson, Jr, C E and Cox, P A},
abstractNote = {Building on the work of Wilkins, Eulerian hydrocode calculations were performed with ceramic models to examine the behavior of thin ceramic tiles backed by a thin substrate. In order to match ballistic limit data it was necessary to include a pressure dependent flow stress for failed ceramic. Reasonable agreement is found between the modified model and ballistic limit data for a simulated armor piercing round impacting an AD-85 alumina/6061T6 aluminum laminate. Based upon this success, the modified model was used to examine the performance of a SiC/6061T6 aluminum laminate when impacted by an M80 ball round (7.62 mm) at muzzle velocity. The projectile undergoes large deformation, as does the aluminum backing sheet. The computational results indicate, for the M80 projectile impacting at muzzle velocity, that the ballistic limit thickness for the SiC/aluminum laminate should weigh 10% less than the ballistic limit thickness for steel. The talk will include a video tape of calculations.},
doi = {},
url = {https://www.osti.gov/biblio/175429}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 1995},
month = {Sun Dec 31 00:00:00 EST 1995}
}

Conference:
Other availability
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