High Temperature Properties of Fiber Reinforced Composites under the Different Loading Conditions
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
The mechanical properties of composites are significantly affected by external environment. It is essential to understand the degradation of material performance and judge the material’s lifetime in advance. In the current research, changes in mechanical properties of glass fiber and unsaturated polyester composite materials (GFRP, Glass fiber reinforced plastic) were investigated under different bending stress and submerged in hot water at a temperature of 80°C. Loading time of 100 H (hours), 200 H, 400 H, 600 H, 800 H for testing under stresses equal to 0% (stressfree state), 30%, 50% and 70% of the ultimate strength was applied on the GFRP specimens. From the values of bending stress, obtained from three-point bending test, fracture energy, failure time, and life curve were analysed. Moreover, a normalized strength degradation model for this condition was also developed. It was observed that within 100 H, the decline rate of the bending strength was proportional to the pressure.
Abstract
The mechanical properties of composites are significantly affected by external environment. It is essential to understand the degradation of material performance and judge the material’s lifetime in advance. In the current research, changes in mechanical properties of glass fiber and unsaturated polyester composite materials (GFRP, Glass fiber reinforced plastic) were investigated under different bending stress and submerged in hot water at a temperature of 80°C. Loading time of 100 H (hours), 200 H, 400 H, 600 H, 800 H for testing under stresses equal to 0% (stressfree state), 30%, 50% and 70% of the ultimate strength was applied on the GFRP specimens. From the values of bending stress, obtained from three-point bending test, fracture energy, failure time, and life curve were analysed. Moreover, a normalized strength degradation model for this condition was also developed. It was observed that within 100 H, the decline rate of the bending strength was proportional to the pressure.
참고문헌 (11)
- Ray, H., "Webster’s New World Telecom Dictionary" (2008), Wiley-Interscience Pub. Co.
- Subrata, C. D., "Applications of Fibber Reinforced Polymer Composites(FRP)in Civil Engineering", International Journal of Advanced Structures and Geotechnical Engineering, 3(3), pp.299~309 (2014)
- NIIR Board of Consultants and Engineers, "The Complete Technology Book on Fibre Glass, Optical Glass and Reinforced Plastics" (2006), Asia Pacific Business Press Inc.
- Huang, G., "Behaviors of Glass Fibre", Unsaturated Polyester Composites under Seawater Environment, 2009, pp.30, 1337~1340
- Earl, J. S., "Hydrothermal Ageing Effects on FRP Laminate and Structural Foam Materials", Composites : part, 25, pp.1237~1247 (2004)
- Liao, K., "Effect of Environmental Aging on the Properties of Pultruded GFRP", Composites : Part B, 30, pp.485~493 (1999)
- Lv, X., "Study of Hydrothermal Aging Effect on Mechanical Properties of Carbon Fiber", Epoxy Resin Composites, 2005, 50~53
- The Study on Hydrothermal Aging Behavior of Composites and the Prediction Model of Durability, "Sun, B.", FRP, 2013, pp.28~34
- Mahmood, M. S., "Stress Corrosion Cracking of Basalt", Epoxy Composites under Bending Loading, 2010, pp.17(2), 121~135
- Menta, V.G.K., "Manufacturing of Transparent Composites using Vacuum Infusion Process", Proceedings of the 4th Annual ISC Research Symposium (ISCRS), pp.1~4 (2010)
- Hu, W., "Effect of Hot Water Environment under Different Bending Stress on the GFRP Mechanical Property", Master, pp.2015