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http://dx.doi.org/10.7234/composres.2022.35.2.106

Study on Out-of-plane Properties and Failure Behavior of Aircraft Wing Unit Structures  

Yoon, Chang-Mo (Department of Smart Manufacturing Engineering, Changwon National University)
Lee, Dong-Woo (The Research Institute of Mechatronics, Changwon National University)
Byun, Joon-Hyung (Composites Research Division, Korea Institute of Materials Science)
Tran, Thanh Mai Nguyen (Department of Smart Manufacturing Engineering, Changwon National University)
Song, Jung-il (Department of Mechanical Engineering, Changwon National University)
Publication Information
Composites Research / v.35, no.2, 2022 , pp. 106-114 More about this Journal
Abstract
Carbon fiber-reinforced plastic, well known high specific strength and high specific stiffness, have been widely used in the aircraft industry. Mostly the CFRP structure is fabricated by lamination of carbon fiber or carbon prepreg, which has major disadvantage called delamination. Delamination is usually produced due to absence of the through-thickness direction fiber. In this study, three-dimensional carbon preform woven in three directions is used for fabrication of aircraft wing unit structure, a part of repeated structure in aircraft wing. The unit structure include skin, stringer and rib were prepared by resin transfer molding method. After, the 3D structure was compared with laminate structure through compression test. The results show that 3D structure is not only effective to prevent delamination but improved the mechanical strength. Therefore, the 3d preform structure is expected to be used in various fields requiring delamination prevention, especially in the aircraft industry.
Keywords
3D Woven preform; Delamination; Out-of-plane mechanical properties; Fracture behavior;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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