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Component-Wise Models for the Accurate Dynamic and Buckling Analysis of Composite Wing Structures

[+] Author Affiliations
E. Carrera, A. Pagani

Politecnico di Torino, Torino, Italy

P. H. Cabral, A. Prado, G. Silva

Embraer S.A., São José dos Campos, Brazil

Paper No. IMECE2016-65645, pp. V001T03A003; 8 pages
doi:10.1115/IMECE2016-65645
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5051-0
  • Copyright © 2016 by ASME

abstract

In the present work, a higher-order beam model able to characterize correctly the three-dimensional strain and stress fields with minimum computational efforts is proposed. One-dimensional models are formulated by employing the Carrera Unified Formulation (CUF), according to which the generic 3D displacement field is expressed as the expansion of the primary mechanical variables. In such a way, by employing a recursive index notation, the governing equations and the related finite element arrays of arbitrarily refined beam models can be written in a very compact and unified manner. A Component-Wise (CW) approach is developed in this work by using Lagrange polynomials as expanding cross-sectional functions. By using the principle of virtual work and CUF, free vibration and linearized buckling analyses of composite aerospace structures are investigated. The capabilities of the proposed methodology and the advantages over the classical methods and state-of-the-art tools are widely demonstrated by numerical results.

Copyright © 2016 by ASME

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