Buckling and Vibration Analysis Based on a Novel Unified Model for Laminated Composite Beams

Autor: Quoc-Cuong Le, Ba-Duy Nguyen
Rok vydání: 2021
Předmět:
Zdroj: Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020) ISBN: 9783030696092
DOI: 10.1007/978-3-030-69610-8_57
Popis: Based on fundamental equations of the elasticity theory, a novel unified beam model is developed for laminated composite beams. In this model, the displacement field is selected in a unified form which can be recovered to that of existing shear deformation beam theories available in the literature. Based on Lagrange’s equations, the governing equations of the present theory are derived. They are then solved for natural frequencies and critical buckling loads of composite beams under different boundary conditions and lay-ups by using the Ritz approach with novel hybrid trigonometric functions. Various examples are also presented to verify the accuracy and generalization of the present theory, as well as investigate the influences of fiber angle on the behavior of composite beams under different boundary conditions and lay-ups.
Databáze: OpenAIRE