The Effect of Thermal Aging on Tensile Strength of Three-Dimension and Five-Direction Braided Carbon Fiber/BMI Composites

Abstract:

This work aims at investigating the effect of thermal aging on tensile properties of three-dimension (3D) and five-direction braided carbon fiber/BMI resin composites prepared by resin transfer molding (RTM) process. The influence of high temperature on the tensile strength and the failure mechanisms of un-aged and aged composites were studied, respectively. As for the thermal aging condition, 180 for 24h was selected. The tensile strength of both un-aged and aged specimens were tested by SHIMADZU universal material testing machine at room temperature. The fracture modes of specimens were observed by scanning electron microscopy (SEM). It was found that the tensile load at break and tensile strength decreased after ageing. From the SEM views of the failed samples, the fracture surface presented hackles which were specific to the debonding of the interface between fibers and matrix. A lot of fibers were pulled-out in the aged state specimen. It can be confirmed that the failure occurred at the fiber/matrix interface and the fiber/matrix interface seemed to be weak in aged carbon fabrics reinforced BMI composites.

• Periodical: Advanced Materials Research (Volumes 150-151)
• Pages: 1139-1142
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.150-151.1139
• Online since: October 2010
• Authors: Qi Wei Guo, Jia Lu Li, Guo Li Zhang, Ye Hong He, Ming Zhang, Li Chen
• Keywords: BMI Resin, Five-Directional Braided Composite, SEM Failure Surfaces, Tensile Strength, Three-Dimension Braided Composite

References

[1] J.M. Park, J.W. Kim and D.J. Yoon: Composites Science and Technology Vol. 62 (2002), p.743–756.

[2] X.J. Xian and C.L. Choy: Composites Science and Technology Vol. 52(1994), p.93–98.

[3] R. Chanda and L. Rahabi: JMS Rev Marcomol Chem Phys Vol. C37(1997), p.61–98.

[4] S. Ogihara, S. Kobayashi and N. Takeda: Composites Science and Technology Vol. 61(2001), pp.1049-1055.

[5] B.Z. Sun, F. Liu and B.H. Gu: Composites: Part A Vol. 36 (2005), p.1477–1485.

[6] K.H. Tsai, C.H. Chiu and T.H. Wu: Composites Science and Technology Vol. 60(2000), p . 241～248.

[7] M.Z. Zhang and H.J. Li: Computational Materials Science Vol. 39 (2007), p.836–841.

[8] D.S. Li, Z.X. Lu, L. Chen and J.L. Li: International Journal of Solids and Structures Vol. 46 (2009), p.3422–3432.

[9] A. Harman, A. Risborg and C.H. Wang: Composite Structure Vol. 86 (2008), p.85–95.

[10] S. Kobayashi and N. Takeda: Composites: Part A Vol. 33 (2002), p.1529–1538.

[11] M. Akay, G.R. Spratt and B. Meenan: Composites Science and Technology Vol. 63 (2003), p.1053–1059.