Numerical thermo-mechanical bending analysis of hybrid layered composite curved panel and experimental validation

The layered structural deflection responses are predicted numerically in this research considering the combined influence of different external and environmental loading (thermal and mechanical), including the variable elastic strength due to the hybridization of varying fibre (glass/carbon/Kevlar). In addition, the analysis includes the effect of panel curvature parameters to define different geometrical shapes. The numerical model of the layered structure is derived mathematically via the polynomial type of kinematic model in association with isoparametric formulation (using the finite element steps). The layered structure is modelled based on the assumption of equivalent single-layer theory. The predicted deflections of layered structures are verified with experimental data, including the very own observed properties. Additionally, the necessary elevated thermal environment is designed to perform the required bending test. The current numerical results are obtained through a well-designed computer code prepared using the proposed mathematical model. The finite element deflection values are obtained through the MATLAB code and compared with the experimental test result by simulating identical physical conditions adopted during the experimental test. The higher-order finite element model is being utilized for numerical experimentations considering variable input data. The results obtained for one/many variable input parameters and the corresponding output are discussed in different aspects. The outcome of this research is a complete and generic-type computational solution for the laminated structure considering the effect of curvature, elevated thermal environment and hybridization.