複合材料積層板の擬三次元振動解析法

概要

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The flexural vibration of laminated fiber-plastic composite structures can be simulated by the finite element method (FEM). The numerical analysis of flexural vibration must consider three-dimensional deformation of objects. Therefore, the numerical model for the vibration analysis must have a large number of three-dimensional elements since the thickness of the composite laminate is very small as compared with other dimensions. In this study, we propose a new numerical model for the vibration analysis of the composite laminate. This model is constructed of shell elements and beam elements. The vibration analysis of the composite laminate is carried out to evaluate this proposed model. It is revealed that the proposed model is effective for simulating the free vibration of composite laminates and reduces the calculation time as compared with the conventional model. Furthermore, we confirm that this proposed model can simulate the vibration of the composite laminates with interlaminar delamination.
一般社団法人日本機械学会の論文
1992-10-25