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Title: Stress fields generated by kinetic energy projectile interaction with ceramic targets

Abstract

Two-dimensional axisymmetric calculations were performed with the Eulerian hydrocode MESA2D and the Lagrangian structural analysis code PRONTO2D. The calculated stress distributions were compared shortly after impact and found to be similar in magnitude and profile. For certain geometric configurations, the interaction of the kinetic energy penetrators with the ceramic targets produce high compressive principal stresses as well as, significant tensile principal stresses ahead of the projectile/ceramic interface. The principal tensile stresses fracture the ceramic ahead of the penetrator. The crack trajectories measured from a recovered ceramic target were compared with crack trajectory estimates based upon MESA2D principal stress states within the tile. The fracture process degrades the ceramic and allows the projectile to penetrate a fractured ceramic media. 12 refs., 3 figs.

Authors:
;
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOD; Department of Defense, Washington, DC (USA)
OSTI Identifier:
5663356
Report Number(s):
LA-UR-91-1693; CONF-9107105-23
ON: DE91013687
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 1991 American Physical Society (APS) conference on shock compression of condensed matter, Williamsburg, VA (USA), 17-20 Jul 1991
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; CERAMICS; IMPACT TESTS; COMPUTERIZED SIMULATION; CRACK PROPAGATION; FRACTURE MECHANICS; PROJECTILES; STRESSES; MATERIALS TESTING; MECHANICAL TESTS; MECHANICS; SIMULATION; TESTING; 360203* - Ceramics, Cermets, & Refractories- Mechanical Properties; 450000 - Military Technology, Weaponry, & National Defense

Citation Formats

Burkett, M W, and Rabern, D A. Stress fields generated by kinetic energy projectile interaction with ceramic targets. United States: N. p., 1991. Web. doi:10.1016/B978-0-444-89732-9.50219-3.
Burkett, M W, & Rabern, D A. Stress fields generated by kinetic energy projectile interaction with ceramic targets. United States. https://doi.org/10.1016/B978-0-444-89732-9.50219-3
Burkett, M W, and Rabern, D A. 1991. "Stress fields generated by kinetic energy projectile interaction with ceramic targets". United States. https://doi.org/10.1016/B978-0-444-89732-9.50219-3. https://www.osti.gov/servlets/purl/5663356.
@article{osti_5663356,
title = {Stress fields generated by kinetic energy projectile interaction with ceramic targets},
author = {Burkett, M W and Rabern, D A},
abstractNote = {Two-dimensional axisymmetric calculations were performed with the Eulerian hydrocode MESA2D and the Lagrangian structural analysis code PRONTO2D. The calculated stress distributions were compared shortly after impact and found to be similar in magnitude and profile. For certain geometric configurations, the interaction of the kinetic energy penetrators with the ceramic targets produce high compressive principal stresses as well as, significant tensile principal stresses ahead of the projectile/ceramic interface. The principal tensile stresses fracture the ceramic ahead of the penetrator. The crack trajectories measured from a recovered ceramic target were compared with crack trajectory estimates based upon MESA2D principal stress states within the tile. The fracture process degrades the ceramic and allows the projectile to penetrate a fractured ceramic media. 12 refs., 3 figs.},
doi = {10.1016/B978-0-444-89732-9.50219-3},
url = {https://www.osti.gov/biblio/5663356}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

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