Design of buckling and damage resistant steered fibre composite laminates using trellis shear kinematics
Design of buckling and damage resistant steered fibre composite laminates using trellis shear kinematics
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DOI：
10.1016/j.compstruct.2020.113526
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发表时间：
2021-03
影响因子：
6.3
通讯作者：
Zhaofei Xiao;P. Harrison
中科院分区：
文献类型：
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作者：
Zhaofei Xiao;P. Harrison
利用有限元软件ABAQUS™，开发了一种基于MatLab®的数值工具‘SteerFab’，用于预测导向纤维花纹并分析所得到的变刚度板的力学性能。基于网格剪切运动学[1]，SteerFab可以创建导向纤维图案和相应的初始未变形板材的形状。数值研究中考虑了两种尺寸为300 mm×400 mm的矩形板，一种带中心孔，另一种不带90 mm直径。对于开孔板，有限元分析表明，与性能最佳的等效直纤维层合板相比，优化后的导向纤维复合材料(~6%)和玻璃-环氧复合材料(~7%)在抗屈曲载荷方面有相似的改善，而破坏载荷对于碳-环氧复合材料增加了约5%，对于玻璃-环氧复合材料增加了约10%。
A Matlab®-based numerical tool, ‘SteerFab’, is developed to predict steered fibre patterns and to analyse the mechanical properties of the resulting variable stiffness panels using the finite element software, Abaqus™. Based on trellis shear kinematics [1], both the steered fibre pattern and the shape of the corresponding initial undeformed sheet can be created by SteerFab. Two types of rectangular plates measuring 300 mm × 400 mm are considered in this numerical study, one with and one without a 90 mm diameter central hole. For the plate with a hole, the finite element analysis predicts that the optimised steered-fibre pattern achieves similar improvements for both a carbon-epoxy composite (~6%) and a glass–epoxy composite (~7%) in terms of buckling resistance load, while failure load is increased by about 5% for a carbon-epoxy composite and 10% for a glass–epoxy composite compared to the best performing equivalent straight-fibre laminates.