Delamination is a severe threat to the wide use of composite laminates in primary structural applications. Delamination grows under fatigue loading and leads to structural failure. Very few studies exist on mixed-mode delamination on carbon fiber however glass fiber was not studied under mixed mode. The objective of this paper is to investigate fatigue delamination growth under mixed-mode loading in Glass Fiber Reinforced Polymer (GFRP). A mixed-mode bending fixture was developed and fabricated. Fatigue delamination growth tests were performed for different mixed-mode loading using that fixture. With the help of a Scanning Electron Microscope, micro examinations of the crack surface were carried out. The results showed a high growth rate for the case with more contribution of mode I. The Fractographic investigation performed on the different samples showed the existence of mode-I and mode-II features and broken fiber’s confirming fiber bridging during delamination growth. The fractographic features varied systematically with mode shift.
[5] Johar M., Israr H.A., Low K.O., Wong K.J., Numerical Simulation Methodology for Mode II Delamination of Quasi-Isotropic Quasi-Homogeneous Composite Laminates, Journal of Composite Materials,51(28): 3955-3968 (2017).
Ahmad, S., Khan, R., Amjad, M., & Akram, W. (1999). Fatigue Delamination Behavior of GFRP Composites under Mixed-Mode I/II Loading. Iranian Journal of Chemistry and Chemical Engineering, 42(10), 3546-3554. doi: 10.30492/ijcce.2023.562972.5621
MLA
Sajjad Ahmad; Rafiullah Khan; Muhammad Amjad; Waseem Akram. "Fatigue Delamination Behavior of GFRP Composites under Mixed-Mode I/II Loading". Iranian Journal of Chemistry and Chemical Engineering, 42, 10, 1999, 3546-3554. doi: 10.30492/ijcce.2023.562972.5621
HARVARD
Ahmad, S., Khan, R., Amjad, M., Akram, W. (1999). 'Fatigue Delamination Behavior of GFRP Composites under Mixed-Mode I/II Loading', Iranian Journal of Chemistry and Chemical Engineering, 42(10), pp. 3546-3554. doi: 10.30492/ijcce.2023.562972.5621
VANCOUVER
Ahmad, S., Khan, R., Amjad, M., Akram, W. Fatigue Delamination Behavior of GFRP Composites under Mixed-Mode I/II Loading. Iranian Journal of Chemistry and Chemical Engineering, 1999; 42(10): 3546-3554. doi: 10.30492/ijcce.2023.562972.5621