27. On Non-Destructive Evaluation Techniques for Ballistic Impact Damage in Armor Ceramics

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

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291276.ch27

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) On Non-Destructive Evaluation Techniques for Ballistic 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.ch27

Author Information

  1. JMW Associates 102 Pine Hill Blvd Mashpee, MA, 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:

  • nondestructive examination;
  • ceramic materials;
  • X-ray computed tomography;
  • destructive sectioning;
  • impact damage tolerance

Summary

Traditional nondestructive examination, NDE, techniques are frequently satisfactory for pre-impact quality inspections of armor ceramics as well as the qualitative detection of impact created damage. However, detailed ballistic impact damage features and their volumetric distributions are generally quite difficult to characterize, spatially visualize, and quantify since real damage is frequently complex, non-uniform, and generally not conducive to accurate 3D interrogation by most common NDE modalities. Physical sectioning (destructive testing) and polishing can reveal accurate damage details only on the particular sectioned plane and risks the possibility of introducing extrinsic damage features inadvertently cause by the sectioning and polishing operations themselves. The application of x-ray computed tomography, XCT, has enabled dramatic 2-D and 3-D in situ diagnostic and visualization capabilities in both the pre-and post- impact damage assessment of ceramic and metallic targets. An overview and update of the ballistic impact damage characterization and visualization methodology and several dramatic results obtained to date utilizing the XCT NDE modality are presented and discussed. Further improvements in XCT damage analysis and assessment capability and its potential synergistic compatibility with other NDE modalities should be possible in the future.