7. Considerations on Incorporating XCT into Predictive Modeling of Impact Damage in Armor Ceramics

  1. Jeffrey J. Swab
  1. Joseph M. Wells

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291276.ch7

Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7

Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7

How to Cite

Wells, J. M. (2005) Considerations on Incorporating XCT into Predictive Modeling of Impact Damage in Armor Ceramics, in Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7 (ed J. J. Swab), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291276.ch7

Author Information

  1. JMW Associates 102 Pine Hill Blvd Mashpee, 02649–2869

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982374

Online ISBN: 9780470291276

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Keywords:

  • ballistic damage models;
  • 3D morphological;
  • internal cracking;
  • penetration;
  • macro penetration phenomenon

Summary

Traditional predictive ballistic damage models are limited in their usefulness for several reasons including their continuing inability to accurately describe the 3D morphological distribution and characteristics of the impact cracking damage in the target material(s) beyond and adjacent to the penetration cavity. Results from both destructive sectioning and advanced high resolution nondestructive x-ray computed tomography, XCT, examination reveal a distinctly non-uniform 3D damage distribution which is frequently asymmetrical along the projected penetration path. In addition to the traditionally reported conical, radial, circular and laminar cracks, surface topological step features and spiral cracking have been revealed and visualized in ceramic targets via XCT damage analysis. Techniques also have been developed to quantify the internal cracking damage fraction throughout the target sample damage volume with the use of the cracking damage distribution as a function of radius and penetration depth. Thus, XCT has the demonstrated capability for the identification, characterization and visualization of many interesting internal damage features and their volumetric distributions in armor ceramics which should be of considerable interest and utility to the predictive damage modeling community. The author advocates the collaborative incorporation of XCT as both a developmental and a verification tool for improved predictive impact damage modeling in armor ceramics.