Title
TNOs research on ceramic based armor
Author
Carton, E.P.
Roebroeks, G.H.J.J.
Weerheijm, J.
Diederen, A.M.
Kwint, M.E.
Contributor
LaSalvia, J.C. (editor)
Publication year
2016
Abstract
Several specially designed experimental techniques including an alternative test method have been developed for the evaluation of ceramic based armor. Armor grade ceramics and a range of combined materials have been tested using 7.62 AP rounds. Using the energy method [12] the dwell-time and total energy absorbed from the AP core were determined. In additional tests time-resolved fracturing of the ceramic tile (fragments) was recorded using high-speed video at one million frames per second. Also the particle size distribution of the fragments were measured in order to determine the total fracture surface area. The information provided by the results of all tests has resulted in an energy-based engineering model that allows calculation of the dwell-time, erosion and residual velocity of an AP-core. The model predicts the mass and velocity of residual AP cores rather well assuming a failure period during which the intact ceramic material transfers into a massively broken medium. The model does not require detailed mechanical properties of the ceramic materials. This reflects the difficulty within the ceramic armor research community to find a relation between mechanical properties and ballistic efficiency of armor ceramics. The developed engineering model creates a renewed understanding of the relevant phenomena, that could explain the ballistic efficiency of ceramic armor. © Copyright 2016 by The American Ceramic Society. All rights reserved.
Subject
Armor
Ballistics
High speed cameras
Mechanical properties
Particle size
Particle size analysis
Testing
Ballistic efficiency
Engineering modeling
Experimental techniques
Fracture surface area
Frames per seconds
Material transfers
Research communities
Residual velocity
Ceramic materials
To reference this document use:
http://resolver.tudelft.nl/uuid:725f37f4-9178-4e15-b8a8-38cb5c51f726
TNO identifier
954784
Publisher
American Ceramic Society
ISBN
9781119040
ISSN
0196-6219
Source
Ceramic Engineering and Science Proceedings, 13th Armor Ceramics Symposium - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015, 25-30 January 2015, 1-18
Document type
conference paper