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Abstract

Two-dimensional fabric forms such as plain weaves are increasingly being considered as the reinforcement of choice for large composite structures ranging from ballistic panels and tank hulls to marine and offshore structural components. A number of these are subject to out-of-plane impact. This paper addresses the influence of stacking sequence on resistance to static and low velocity dynamic penetration. A series of seven layer 24 oz. plain weave E-glass reinforced vinyl-ester composites were manufactured using the RTM process and their response was investigated through static and low-velocity impact testing. Inelastic Energy Curves were used in conjunction with measured projected damage areas and fiber bundle fractures to describe the dynamic behavior. Static and dynamic resistance to penetration is seen to increase with a non-zero delta between adjacent fabric layers. Trends observed during static testing compare well with dynamic behavior and the type of damage observed is similar. Final puncture depends predominantly on the number of fiber bundles fractured or pushed aside to provide a path for penetration.

Keywords

composite resin transfer molding plain weave impact penetration mis-orientation inelastic energy curves

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References

1. Abrate, S. 1991. "Impact of Laminated Composite Materials: A Review," Applied Mechanics Reviews, 44(4):155-189.

2. Backman, M. E. and W. Goldsmith . 1978. "The Mechanics of Projectiles into Targets" Int. J. Engineering Science, 16(1-A):1-99.

3. Kakarala, S. N. and J. L. Roche . 1987. "Experimental Comparison of Several Impact Test Methods," Instrumented Impact Testing of Plastics and Composite Materials, ASTM STP 936, S. L. Kessler , G. C. Adams , S. B. Driscoll and D. R. Ireland , eds., Philadelphia: ASTM, pp. 144-162.

4. Sjoblom, P. , J. Hartness and T. Cordell . 1988. "On Low Velocity Impact Testing of Composite Materials," Journal of Composite Materials, 22(1):30-52.

5. Greszczuk, L. B. 1982. "Damage in Composite Materials Due to Low Velocity Impact," in Im- pact Dynamics, Zukas et al., eds., New York: Wiley, pp. 55-94.

6. Lagace, P. A. , P. H. Williamson , W. Tsang , E. Wolf and S. Thomas . 1993. "A Preliminary Proposition for a Test Method to Measure (Impact) Damage Resistance," Journal of Reinforced Plastics and Composites, 12:584-601.

7. Sun, C. T. 1977. 'An Analytical Method for Evaluation of Impact Damage Energy of Laminated Composites," ASTM S7P 617, pp. 427-440.

8. Sun, C. T. , J. D. Achenbach and G. Herrmann . 1968. "Continuum Theory for a Laminated Medium," Journal of Applied Mechanics, (September):467-475.

9. Shivakumar, K. N. , W. Elber and W. Illg . 1984. "Prediction of Low Velocity Impact Damage in Thin Circular Laminates,' AIAA Journal, 23(l):442-449.

10.

10. Montemurro, M. P. , J. S. Hansen and M. J. L. Houde . 1993. "Finite Element Analysis of the Impact Response of Composite Plates and Shells"' AIAA-93-1448-CP, pp. 1245-1253.

11.

11. Saka, K. and J. Harding . 1990. 'A Simple Laminate Theory Approach to the Prediction of the Tensile Impact Strength of Woven Hybrid Composites," Composites, 21(5):439-447.

12.

12. Finn, S. R. , Y. F. He and G. S. Springer . 1993. "Delaminations in Composite Plates under Transverse Impact Loads-Experimental Results," Composite Structures, 23(3):191-204.

13.

13. Sierakowski, R. L. , L. E. Malvern and C. A. Ross . 1976. "Prediction of Low Velocity Impact Damage in Thin Circular Laminates," AIAA Journal, 23(3):442-449.

14.

14. Ross, C. A. , N. Cristescu and R. L. Sierakowski . 1985. "Experimental Studies of Failure Mechanisms in Composite Plates"' Fibre Science Technology, 9:177-188.

15.

15. Takeda, N. , R. Sierakowski and L. E. Malvern . 1982. "Microscopic Observations of Cross Sections of Impacted Laminates," Composites Technology Review, 4(2):40-44.

16.

16. Broutman, L. J. and A. Rotem . 1975. "Impact Strength and Toughness of Fiber Composite Materials," ASTM STP 568, ASTM, pp. 114-133.

17.

17. Rydin, R. W. and V. M. Karbhari . 1994. "Inelastic Energy Curves-Interrogational Schemes for Impact Response" submitted to Journal of Composite Materials.

18.

18. Rydin, R. W. , M. B. Bushman and V. M. Karbhari . 1994. "On the Influence of Velocity in Low Velocity Impact Testing of Composite Materials;" to appear in Journal of Reinforced Plastics and Composites.

19.

19. Clark, G. 1989. "Modeling of Impact Damage in Composite Laminates," Composites, 20(3):209-214.

20.

20. Hong, S. and D. Liu . 1989. "On the Relationships between Impact Energy and Delamination Area"' Experimental Mechanics, 29(2):115-120.

21.

21. Matsuhasha, H. , M. J. Graves , J. Dugundji and P. A. Lagace . 1993. "Effect of Membrane Stiffening in Transient Analysis of Composite Laminated Plates," AIAA-1993-1611-CP, pp. 2668-2678.

22.

22. Elber, W. 1985. "Effect of Matrix and Fiber Properties on Impact Resistance;' in Tough Composite Materials: Recent Developments, Park Ridge, NJ: Noyes, pp. 89-110.

23.

23. Kelly, A. and G. T. Davies . 1965. "The Principles of the Fibre Reinforcement of Materials;" Met Rev., 10(1).

24.

24. Lindsay, T. L. 1990. "Designing Composite Structures for Low-Velocity Impact" CCM Report 90-18.

25.

25. Elber, W. 1983. "Failure Mechanics in Low Velocity Impacts on Thin Composite Plates," NASA Tech Paper 2152, (May).

Influence of Reinforcing Layer Orientation on Impact Response of Plain Weave RTM Composites

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