Refined structural theories for dynamic and fatigue analyses of structure subjected to random excitations

Refined structural theories for dynamic and fatigue analyses of structure subjected to random excitations

Matteo Filippi, Elisa Tortorelli, Marco Petrolo, Erasmo Carrera

Abstract. This paper presents the application of low- and high-fidelity finite beam elements to analyze the dynamic response of aerospace structures subjected to random excitations. The refined structural models are developed with the Carrera Unified Formulation (CUF), enabling arbitrary finite element solutions to be easily generated. The solution scheme uses power spectral densities and the modal reduction strategy to reduce the computational burden. The response of an aluminum box beam is studied and compared with a solution obtained by a commercial code. Considering the root-mean-square value of the axial stress, an estimation of the fatigue life of the structure is obtained.

Keywords
Random Excitation, Refined Structural Model

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, Elisa Tortorelli, Marco Petrolo, Erasmo Carrera, Refined structural theories for dynamic and fatigue analyses of structure subjected to random excitations, Materials Research Proceedings, Vol. 37, pp 453-456, 2023

DOI: https://doi.org/10.21741/9781644902813-100

The article was published as article 100 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.

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