Buckling Analysis for Carbon and Glass Fibre Reinforced Hybrid Composite Stiffened Panels

被引:2
作者
Han, Haoting [1 ]
Dong, Chensong [1 ]
机构
[1] Curtin Univ, Sch Civil & Mech Engn, Perth, WA 6845, Australia
来源
JOURNAL OF COMPOSITES SCIENCE | 2024年 / 8卷 / 01期
关键词
composite; hybrid; stiffened panel; buckling; HYBRIDIZATION; BEHAVIOR; OPTIMIZATION; STRENGTH;
D O I
10.3390/jcs8010034
中图分类号
TB33 [复合材料];
学科分类号
摘要
Composite laminated structural panels are widely used in various industries such as aerospace and machinery because of their light weight, large specific stiffness, and strong fatigue resistance. As a typical engineering structure, the composite stiffened plate is designed to enhance the bearing capacity of the laminated plate. In this study, composite stiffened panels reinforced by carbon and/or E-glass fibres are modelled by finite element analysis (FEA) using Ansys. Nonlinear structural analysis is employed to find the critical buckling load. Three different skin layups, i.e., [45 degrees/-45 degrees/90 degrees/0 degrees]S, [90 degrees/0 degrees/90 degrees/0 degrees]S, and [60 degrees/-30 degrees/90 degrees/0 degrees]S, are studied. For each ply angle combination, different ply material combinations are studied. The cost and weight of each combination formed by applying different ply materials to the skin and stiffeners are studied. The results show that hybrid reinforcement in the stiffened panels reduces costs and maintains high buckling loads. Carbon/epoxy composites as the outer layers also reduce costs and maintain acceptable buckling loads without compromising the overall performance. Customized composite designs in terms of cost and weight can be achieved while maintaining critical buckling loads.
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页数:10
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