The research aims to investigate the carbon fibre composite laminate for effect of their layer configuration including their number and relative orientation of fibre angles on their mechanical properties and its consistency with the results obtained from simulated data using finite element analysis (FEA) on mechanical properties. The laminate composite with four types of fiber layer orientations were prepared using total eight layers including unidirectional and cross ply layers with different orientations. The flexural properties of the samples were evaluated. The results of experiments found consistent with the simulated data and it indicates that the fibre orientations and its layer sequence influence the characteristics of laminate composites. The composite with 0° orientated unidirectional fibre layers shows maximum flexural strength. The flexural strain is higher for laminate composite having layers with cross plies (45° fibre orientations). The different position of cross ply in the sequence shows variations in flexural properties because the typical nature of the three point bending flexural test of laminate composite where top side layers are under compression and bottom side layers are under tension.

中文翻译：

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纤维取向对碳纤维复合材料力学性能的影响

该研究旨在研究碳纤维复合材料层压板的层结构（包括纤维角的数量和相对方向）对其机械性能的影响，以及其与使用有限元分析（FEA）从模拟数据中获得的机械性能结果的一致性。使用总共八层，包括具有不同取向的单向层和交叉层，制备了具有四种类型的纤维层取向的层压复合材料。评估样品的弯曲性能。实验结果与模拟数据吻合，表明纤维取向及其层序影响层压复合材料的性能。具有0°取向的单向纤维层的复合材料显示出最大的抗弯强度。对于具有交叉层（45°纤维取向）的层的层压复合材料，挠曲应变较高。顺序中的交叉帘布层的不同位置显示出挠曲性能的变化，这是因为层压复合材料的三点弯曲挠曲测试的典型性质，其中顶面层处于压缩状态，而底面层处于拉伸状态。