The dynamic failure evolution of textile composites, which were subjected to impact velocities up to 1100 m/s, was investigated. Specialized machines were used to fabricate composites from combinations of Spectra®, Kevlara®, and Twaron® fibers and two- and three-dimensionally woven, braided, and needle-punched nonwoven fabrics. This control of fabrication and processing enabled us to characterize response as a function of areal density, fabric finish, and consolidation techniques. Failure was categorized in terms of material layers, debris mass, matrix cracking, fiber failure, and shear-plugging. Results indicate that shear-plugging occurs at velocities corresponding to decreases in debris mass.
1. Cantwell, W. J. (1990), "Impact Perforation of Carbon Reinforced Plastic,"Composites Science Technology, 38:119-141.
2.
2. Cunniff, Philip (1992), "An Analysis of the System Effects in Woven Fabrics under Ballistic Impact,"Textile Research Journal, 62:495-509.
3.
3. Cunniff, Philip M. (1996), "A Semiempirical Model for the Ballistic Impact Performance of Textile-Based Personnel Armor,"Textile Research Journal, 66:45-59.
4.
4. Jenq, S. T., Jing, H.-S., and Chung, C. (1992), "Predicting the Ballistic Limit for Plain Woven Glass/Epoxy Composite Laminate,"International Journal of Impact Engineering, 17:451-464.
5.
5. Jenq, S. T., and Mo, J. J. (1996), "Ballistic Impact Response for Two Step Braided Three Dimensional Textile Composites,"AIAA Journal, 34:375-384.
6.
6. Lee, B. L., Song, J. W., and Ward, J. E. (1994), "Failure of Spectra Polyethylene Fiber-Reinforced Composites under Ballistic Impact Loading,"Journal of Composite Materials, 28:1202-1226.
7.
7. Kang, -Tai -Jin, and Lee, -Sung -Ho (1994), "Effect of Stitching on the Mechanical and Impact Properties of Woven Laminate Composites,"Journal of Composite Materials, 28:1574-1587.
8.
8. Flanagan, Michael P., Experimental High Velocity Investigation of Impact and Penetration Failure Modes in Textile Composites, M.S. Thesis, North Carolina State University, 1996.
9.
9. Wall, John W., An Experimental Investigation of the Fabrication, Design, and Failure Modes of Aramid/Epoxy, UHMWPE/Epoxy, and Hybrid Aramid and UHMWPE/Epoxy Composites, M.S. thesis, North Carolina State University, 1998.
