Abstract
This paper presents the free vibration and static analysis of composite box beam using refined beam theory. The structural model based on one-dimensional (1D) is derived in the Carrera Unified Formulation (CUF) framework. The principle of virtual displacement has been used along with CUF to formulate the finite element arrays in the terms of fundamental nuclei, which either do not depend on the expansion order or on the class of the beam model. In the present study, the various composite box beam models with and without cut-off model using different aspect ratio has been analyzed the free vibration and static analysis. The results of free vibration analysis are compared to published literature. The present study indicates the high-level accuracy reached by refined beam models with lower computational costs than 3D solid elements.
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