Title: Effect of Resin Viscoelastic Behavior on High Strain Rate Impact Performance of Fiber Reinforced Composites

Authors: Brendan A. Patterson, Casey Busch, Kevin A. Masser, Matthew Bratcher, and Daniel B. Knorr, Jr.

DOI: 10.33599/nasampe/s.19.1415

Abstract: The influence of measurement temperature on the high velocity (>100 m/s) impact performance was investigated for a model thermosetting resin composite system. Plain weave S-2 glass composite panels were fabricated using VARTM and an epoxy resin cured with a polyetheramine curing agent. Overall, the energy absorption for the composite remained approximately constant over a broad testing temperature (T) range. The damage area caused by high-strain rate delamination, however, showed remarkable dependence on the T-Tg. The damage area was high in the glassy state (low T-Tg values) and decreased as the resin traversed its Tg into the rubbery region. Impacted samples showed that an increase in back face deflection correlated to lower damage areas and enabled more energy absorption. These results illustrate the critical importance of the temperature dependent viscoelastic behavior on the impact properties of composites.

References: 1. Wilkins, M., Second progress report of light armor program. 1967: California Univ., Livermore (USA). Lawrence Livermore Lab. 2. Wilkins, M.L., C.F. Cline, and C.A. Honodel, Fourth Progress Report of Light Armor Program. 1969, University of California Livermore: Livermore, CA. 3. DeLuca, E., et al., Ballistic impact damage of S 2-glass-reinforced plastic structural armor. Composites Science and Technology, 1998. 58(9): p. 1453-1461. 4. Hazell, P.J. and G.J. Appleby-Thomas, The impact of structural composite materials. Part 1: ballistic impact. Journal of Strain Analysis for Engineering Design, 2012. 47(7): p. 396-405. 5. Scott, B., New ballistic products and technologies, in Lightweight ballistic composites. 2006, Elsevier. p. 336-363. 6. Cantwell, W.J. and J. Morton, The impact resistance of composite materials — a review. Composites, 1991. 22(5): p. 347-362. 7. Razali, N., et al., Impact Damage on Composite Structures – A Review. International Journal of Engineering and Science, 2014. 3(7): p. 08-20. 8. Bartus, S.D. and U.K. Vaidya, A review: Impact damage of composite materials. Journal of Advanced Materials, 2007. 39(3): p. 3-21. 9. Kasano, H., Recent advances in high-velocity impact perforation of fiber composite laminates. Jsme International Journal Series a-Solid Mechanics and Material Engineering, 1999. 42(2): p. 147-157. 10. Reddy, P.R.S., et al., Effect of viscoelastic behaviour of glass laminates on their energy absorption subjected to high velocity impact. Materials & Design, 2016. 98: p. 272-279. 11. Faur-Csukat, G., A study on the ballistic performance of composites. Macromolecular Symposia, 2006. 239: p. 217-226. 12. Sarlin, E., et al., Impact properties of novel corrosion resistant hybrid structures. Composite Structures, 2014. 108: p. 886-893. 13. Sarlin, E., et al., The effect of test parameters on the impact resistance of a stainless steel/rubber/composite hybrid structure. Composite Structures, 2014. 113: p. 469-475. 14. Bibo, G., et al., High-temperature damage tolerance of carbon fibre-reinforced plastics: Part 1: Impact characteristics. Composites, 1994. 25(6): p. 414-424. 15. Ma, H.-l., et al., Impact properties of glass fiber/epoxy composites at cryogenic environment. Composites Part B: Engineering, 2016. 92: p. 210-217. 16. Im, K.-H., et al., Effects of temperature on impact damages in CFRP composite laminates. Composites Part B: Engineering, 2001. 32(8): p. 669-682. 17. Gómez-del Rı́o, T., et al., Damage in CFRPs due to low velocity impact at low temperature. Composites Part B: Engineering, 2005. 36(1): p. 41-50. 18. Machado, J., et al., Mode I fracture toughness of CFRP as a function of temperature and strain rate. Journal of Composite Materials, 2017. 51(23): p. 3315-3326. 19. Machado, J.J.M., et al., Mode II fracture toughness of CFRP as a function of temperature and strain rate. Composites Part B: Engineering, 2017. 114: p. 311-318. 20. Knorr, D.B., Jr., et al., Glass transition dependence of ultrahigh strain rate response in amine cured epoxy resins. Polymer, 2012. 53(25): p. 5917-5923. 21. Masser, K.A., et al., Temperature dependent impact performance and the configurational entropy of polymer networks. Journal of Polymer Science Part B: Polymer Physics, 2018. in press. 22. Knorr Jr, D.B., et al., Overcoming the structural versus energy dissipation trade-off in highly crosslinked polymer networks: Ultrahigh strain rate response in polydicyclopentadiene. Composites Science and Technology, 2015. 114: p. 17-25. 23. Elder, R., et al., Mechanics and nanovoid nucleation dynamics: Effects of polar functionality in glassy polymer networks. Soft Matter, 2018. 24. Elder, R.M., et al., Nanovoid formation and mechanics: a comparison of poly (dicyclopentadiene) and epoxy networks from molecular dynamics simulations. Soft matter, 2016. 12(19): p. 4418-4434. 25. MIL-STD, U.M.S., 662F, V50 Ballistic Test for Armor. US Army Research Laboratory, Weapons & Materials Research Directorate, Aberdeen Proving Ground, MD (December 1997), 1997. 26. Zee, R.H. and C.Y. Hsieh, Energy loss partitioning during ballistic impact of polymer composites. Polymer Composites, 1993. 14(3): p. 265-271.

Conference: SAMPE 2019 - Charlotte, NC

Publication Date: 2019/05/20

SKU: TP19--1415

Pages: 9

Price: FREE