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Abstract

The energy analysis method was employed for the understanding of impact behavior of multi-ply plain-woven fabric considering the energy of a projectile. A three-element viscoelastic model was used to describe the dynamic behavior of fibers. Yarn slippage on the warp-weft crossover points was considered by updating the element length. Crimp effect was taken into account by assigning some portion of the strain to crimp. Fabric slippage on the clamped area and yarn pullout on the edge of the fabric were also considered. Bending resistance of the fabrics was assumed as the reaction force of a node arising from the curvature of the nodes. The inelastic collision of fabric layers as well as the collision with the projectile was considered. The numerical model describing all of the features was implemented as in-house code. Each of the energy dissipation mechanisms was characterized to clarify the contribution to the total energy absorption and performance of the fabrics against ballistic impacts. Three cases representing no-perforation, mature-perforation, and premature-perforation were chosen to explain different energy dissipation characteristics, depending on the impact velocity. The difference in reaction of each layer with projectile was also examined.

Keywords

multi-ply multi-layer impact ballistic energy

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References

Roylance, D.K. , Wilde, A.F. , and Tocci, G.C. , Ballistic Impact of Textile Structures, Text. Res. J., 43, 34-41, 1973.

Roylance, D.K. , Wave Propagation in a Viscoelastic Fiber Subjected to Transverse Impact, J. Appl. Mech., 40, Series E, 143-148 (1973).

Shim, V.P.W. , Tan, V.B.C. , and Tay , T.E. , Modelling Deformation and Damage Characteristics of Woven Fabric under Small Projectile Impact, Int. J. Impact. Eng., 16, 585-605 (1995).

Ting, C. , Ting, J. , Cunniff, P. , and Roylance, D.K. , Numerical Characterization of the Effects of Transverse Yarn Interaction on Textile Ballistic Response, in "Proceedings of the 30th International SAMPE Technical Conference", 1998, pp. 57-67.

Cunniff, P.M. , and Ting, J. , Development of a Numerical Model to Characterize the Ballistic Behaviour of Fabrics, in "Proceedings of the 18th International Symposium of Ballistics", 1999, pp. 822-828.

Termonia, Y. , Impact Resistance of Woven Fabrics, Text. Res. J., 74(8), 723-729 (2004).

Simons, J.W. , Erlich, D.C. , and Shockey, D.A. , Finite Element Design Model for Ballistic Response of Woven Fabrics, in "Proceedings of the 19th International Symposium of Ballistics", 2001, pp. 1415-1422.

Brueggert, M. , and Tanov, R.R. , An LS-DYNA User Defined Material Model for Loosely Woven Fabric with Non-orthogonal Varying Weft and Warp Angle, in "Proceedings of the 7th International LS-DYNA Users Conference", 2002, pp. 8-01-13.

Tabiei, A. , and Ivanov, I. , Computational Micro-mechanical Model of Flexible Woven Fabric for Finite Element Impact Simulation, in "Proceedings of the 7th International LS-DYNA Users Conference", pp. 8-15-39.

10.

Lim,, C.T. , Shim, V.P.W. , and Ng , Y.H. , Finite-element Modeling of the Ballistic Impact of Fabric Armor, Int. J. Impact. Eng. , 28, 13-31 (2004).

11.

Duan, Y. , Keefe, M. , Bogetti, T.A. , and Cheeseman, B.A. , Modeling Friction Effects on the Ballistic Impact Behavior of a Single-ply High-strength Fabric, Int. J. Impact. Eng., 31, 996- 1012 (2005).

12.

Tan, V.B.C. , and Ching, T.W. , Computational Simulation of Fabric Armour Subjected to Ballistic Impacts, Int. J. Impact Eng., 32(11), 1737-1751 (2006).

13.

Joo, K. , and Kang, T.J. , Numerical Analysis of Multi-ply Fabric Impacts, Text. Res. J. (accepted) (2007).

14.

Termonia, Y. , and Smith, P. , Theoretical Study of the Ultimate Mechanical Properties of Poly(p-phenylene-Terephthalamide) Fibers, Polymer , 27, 1845-1849 (1986).

15.

Termonia, Y. , Meakin, P. , and Smith, P. , Theoretical Study of the Influence of Strain Rate and Temperature on the Tensile Strength of Perfectly Ordered and Oriented Poly-ethylene, Macromolecules, 19, 154-159 (1986).

16.

Termonia, Y. , and Smith, P. , Kinetic Model for Tensile Deformation of Polymers, 2: Effect of Entanglement Spacing, Macromolecules , 21, 2184-2189 (1998).

17.

Roylance, D. , Chammas, P. , Ting, J. , Chi, H. , and Scott, B. , Numerical Modeling of Fabric Impact, in "Proceedings of the National Meeting of the American Society of Mechanical Engineers (ASEM) ", San Francisco, 1995.

18.

Tan, V. B. C , Shim, V. P. W , and Zeng, X. , Modelling Crimp in Woven Fabrics Subjected to Ballistic Impact, Int. J. Impact Eng., 32, 561-574 (2005).

19.

Breen, D.E. , House, D.H. , and Wozny, M.J. , A Particle-based Model for Simulation of the Draping Behavior of Woven Cloth, Text. Res. J., 64(11), 663-685, 1994.

20.

Zhurkov, S.N. , Kinetic Concept of the Strength of Solids, Int. J. Fract., 26, 295-307 (1984).

21.

Roylance, D.K. , "Numerical Analysis of Projectile Impact in Woven Textile Structures", NASA Report CP-2017, 1977, pp. 240-260.

Numerical Analysis of Energy Absorption Mechanism in Multi-ply Fabric Impacts

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