Falkowicz Katarzyna, Samborski Sylwester, Valvo Paolo Sebastiano
Faculty of Mechanical Engineering, Department of Machine Design and Mechatronics, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Faculty of Mechanical Engineering, Department of Mechanics, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Materials (Basel). 2022 Nov 3;15(21):7752. doi: 10.3390/ma15217752.
Analytical calculations were performed on carbon fiber-reinforced polymer (CFRP) laminates in an asymmetrical configuration. The asymmetric configuration of composites was investigated, where extension-twisting and extension-bending couplings were used to obtain the elastic element. Analysis of the presence of elastic couplings was conducted according to Classical Laminate Theory (CLT). Components of matrices A, B, and D, as well as the parameters and , were obtained using the MATLAB software environment. The results show that couplings between the extension and bending, as well as between the extension and twisting, were strongly dependent on specimen plies' orientation. Moreover, additional analysis was performed on the influence of layer angle on the terms which are components of the and coefficients. The results indicate that the angle of laying fibers around 45-50° significantly amplifies the effects of elastic couplings.
对非对称构型的碳纤维增强聚合物（CFRP）层压板进行了分析计算。研究了复合材料的非对称构型，其中利用拉伸-扭转和拉伸-弯曲耦合来获得弹性元件。根据经典层合板理论（CLT）对弹性耦合的存在进行了分析。使用MATLAB软件环境获得了矩阵A、B和D的分量以及参数 和 。结果表明，拉伸与弯曲之间以及拉伸与扭转之间的耦合强烈依赖于试样层的取向。此外，还对层角对作为 和 系数分量的项的影响进行了额外分析。结果表明，纤维铺设角度在45 - 50°左右时会显著放大弹性耦合的效应。
