Experimental Investigation of the Effect of Interface Fiber Angle on the Fracture Toughness of Woven Laminated Composites Under Mode II Loading

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Salamat Talab M.; Zeinolabedin Beygi A.; SEYYEDNEJAD S.M.

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Journal: Modares Mechanical Engineering Year:2021 | Volume:21 | Issue:4 Page(s): 225-233

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Title

Experimental Investigation of the Effect of Interface Fiber Angle on the Fracture Toughness of Woven Laminated Composites Under Mode II Loading

Author(s)

Salamat Talab M. | Zeinolabedin Beygi A. | SEYYEDNEJAD S.M. | Issue Writer Certificate

Keywords

Fracture ToughnessQ2

Resistance Curve (R-Curve)Q1

Woven Laminated CompositesQ1

DelaminationQ1

Abstract

Delamination is one of the most common damage modes in laminated composites that can reduce the stiffness and load-bearing capacity of the composite structure, which highlights the importance of studying this phenomenon. For this purpose, the effect of the interface fiber angles on the mode II Fracture Toughness of plain-Woven Laminated Composites has been investigated in this study. The end notch flexure specimens (ENF) with 24 layers which have 0//0, 0//30, and 30//-30 interface angles are manufactured using the hand layup method, and experimental tests are conducted on them in accordance with ASTM standard under load II mode loading. Experimental results show that the interface fiber angle has a significant effect on the initiation and propagation of Delamination toughness, so the load-bearing capacity of the specimens with the non-zero interface fiber angle was the highest value. Moreover, the initiation and propagation value of Fracture Toughness for specimens with 0//0 interface fiber angle was less than the corresponding values for other samples with non-zero interface angles. In addition, the fracture process zone (FPZ) length was approximately the same for all samples. Taken images of fracture surfaces using scanning electron microscopy (SEM) show that in addition to the separation of fibers from the resin at Delamination, other damage mechanisms including fiber breakage and highly deformed matrix play a key role in increasing the Fracture Toughness of the sample with 0//30 and 30//-30 interface fiber angle.

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APA: Copy

Salamat Talab, M., Zeinolabedin Beygi, A., & SEYYEDNEJAD, S.M.. (2021). Experimental Investigation of the Effect of Interface Fiber Angle on the Fracture Toughness of Woven Laminated Composites Under Mode II Loading. MODARES MECHANICAL ENGINEERING, 21(4 ), 225-233. SID. https://sid.ir/paper/371616/en

Vancouver: Copy

Salamat Talab M., Zeinolabedin Beygi A., SEYYEDNEJAD S.M.. Experimental Investigation of the Effect of Interface Fiber Angle on the Fracture Toughness of Woven Laminated Composites Under Mode II Loading. MODARES MECHANICAL ENGINEERING[Internet]. 2021;21(4 ):225-233. Available from: https://sid.ir/paper/371616/en

IEEE: Copy

M. Salamat Talab, A. Zeinolabedin Beygi, and S.M. SEYYEDNEJAD, “Experimental Investigation of the Effect of Interface Fiber Angle on the Fracture Toughness of Woven Laminated Composites Under Mode II Loading,” MODARES MECHANICAL ENGINEERING, vol. 21, no. 4 , pp. 225–233, 2021, [Online]. Available: https://sid.ir/paper/371616/en

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