Nonlinear transient analyses of composite and sandwich structures via high-fidelity beam models
Matteo Filippi, Rodolfo Azzara, Erasmo Carreradownload PDF
Abstract. In this study, we employ low and high-fidelity finite beam elements to conduct geometrical nonlinear transient analyses of composite and sandwich structures. The equations of motion for various structural theories are derived in a total Lagrangian scenario using the Carrera Unified Formulation. The unified formalism’s three-dimensional nature enables us to include all components of the Green-Lagrange strain tensor. To solve the equations, we utilize the Hilber-Hughes-Taylor (HHT)-α algorithm in conjunction with a Newton-Raphson procedure. We present the dynamic response of a sandwich stubby beam subjected to a step load, calculated using both equivalent-single layer and layer-wise approaches. Additionally, we discuss the effects of geometrical nonlinearity.
Finite Element Method, Transient Nonlinear Analyses, One-Dimensional Formulations, Carrera Unified Formulation
Published online 11/1/2023, 4 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Matteo Filippi, Rodolfo Azzara, Erasmo Carrera, Nonlinear transient analyses of composite and sandwich structures via high-fidelity beam models, Materials Research Proceedings, Vol. 37, pp 239-242, 2023
The article was published as article 52 of the book Aeronautics and Astronautics
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