Nonlinear transient analyses of composite and sandwich structures via high-fidelity beam models

Nonlinear transient analyses of composite and sandwich structures via high-fidelity beam models

Matteo Filippi, Rodolfo Azzara, Erasmo Carrera

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.

Keywords
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

DOI: https://doi.org/10.21741/9781644902813-52

The article was published as article 52 of the book Aeronautics and Astronautics

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
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