Effect of embedded delaminations on impact behavior of laminated composites

Abstract

In this study, the influence of size and location of embedded delamination on impact behavior of laminated composite was investigated, experimentally. The specimens were produced as for with and without delamination by vacuum assisted resin infusion molding method (VARIM). CEAST-Fractovis plus impact test machine was used in the experiments. As a result of the experiments, the location of delamination on the impact behavior was seen to be more effective than the size of delamination.

Keywords

• Laminated composites, Embedded delamination, Impact behavior.

Tabakalı kompozitlerin darbe davranışına gömülü delaminasyonların etkisi

Öz

Bu çalışma da, yapay delaminasyonun konumunun ve boyutunun, tabakalı kompozit malzemelerin darbe davranışları üzerine etkisi deneysel olarak incelenmiştir. Deney numuneleri, vakum destekli reçine infüzyon metodu kullanılarak delaminasyonlu ve delaminasyonsuz olarak üretilmiştir. Deneylerde CEAST-Fractovis plus test cihazı kullanılmıştır. Deney sonucu olarak delaminasyon konumunun, delaminasyon boyutuna göre daha etkili olduğu gözlemlenmiştir.

Anahtar Kelimeler

• Tabakalı kompozitler, gömülü delaminasyon, darbe davranışı

Kaynakça

1. Abrate, S., Impact on Composite Structures, Cambridge University Press, Cambridge, 1-5, 1998.
2. Hosur, M. V., Adbullah, M. and Jeelani, S., “Studies on the low-velocity impact response of woven hybrid composites”, Composite Structures, 67, 253-262, 2005.
3. Zheng, D. and Binienda, W. K., “Effect of permanent indentation on the delamination threshold for small mass impact on plates”, International Journal of Solids and Structures, 44, 8143-8158, 2007.
4. Symons, D. D., “Characterization of indentation damage in 0/90 lay-up T300/914 CFRP”, Composites Science and Technology, 60, 391-401, 2000.
5. Datta, S., Krishna, A. V. and Rao, R. M. V. G. K., “Low velocity impact damage tolerance studies on glass/epoxy laminates-effects of material, process and test parameters”, Journal of Reinforced Plastics and Composites, 23(3), 327-345, 2004.
6. Baucom, J. N. and Zikry, M. A., “Low-velocity impact damage progression in woven E-glass composite systems”, Composite: Part A, 36, 658-664, 2005.
7. Evci, C. and Gulgec, M., “An experimental investigation on the impact response of composite materials”, International Journal of Impact Engineering, 43, 40-51, 2012.
8. Freitas, M., Silva A. and Reis L., “Numerical evaluation of failure mechanisms on composite specimens subjected to impact loading”, Composite: Part B, 31(3), 199-207, 2000.

9. Karakuzu, R., Erbil, E., Aktas, M., “Impact characterization of glass/epoxy composite plates: An experimental and numerical study”, Composite: Part B, 41, 388-395, 2010.
10. Aslan, Z., Karakuzu R., Okutan B., “The response of laminated composite plates under low velocity impact loading”, Composite Structures, 59, 119-127, 2003.
11. Aslan, Z., Karakuzu R. and Sayman O., “Dynamic characteristics of laminated woven E-glass-epoxy composite plates subjected to low velocity heavy mass impact”, Journal of Composite Materials, 36, 2421-2442, 2002.
12. Sabancı, E. and Karakuzu, R., “Impact behavior of laminated composites with embedded delaminations”, 14th International Materials Symposium, 2012, 606-613.