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Crimp-Imbalanced Protective (Crimp) Fabrics

[+] Author Affiliations
Paul V. Cavallaro

U.S. Naval Undersea Warfare Center, Newport, RI

Ali M. Sadegh

The City College of The City University of New York, New York, NY

Paper No. IMECE2010-40610, pp. 331-349; 19 pages
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4446-5
  • Copyright © 2010 by ASME


This report documents research that was conducted to explore the unique concept of using crimp imbalance, which is a simple architectural modification achieved during the weaving process, as a potential mechanism to enhance fragmentation and ballistic protection levels of single-ply woven fabrics. It is shown in this report that crimp imbalance (1) can substantially influence the energy-absorption levels of single-ply fabrics for select fragment simulating projectile (FSP) velocities and friction coefficients; (2) can be tailored to controllably delay stress-wave propagations among yarn directions; and (3) can minimize reflections at the yarn crossover regions. This research, which used numerical models of single ply, plain-woven fabric, demonstrated that deviations in crimp contents can have significant effects on energy absorptions and projectile residual velocities; in short, optimal levels of crimp imbalance may exist for a specific ballistic threat type.

Copyright © 2010 by ASME
Topics: Textiles



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