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Acta Mechanica

, Volume 230, Issue 11, pp 4109–4124 | Cite as

Mechanics of structure genome-based global buckling analysis of stiffened composite panels

  • Ning Liu
  • Wenbin YuEmail author
  • Dewey H. Hodges
Original Paper
  • 122 Downloads

Abstract

Stiffened panels buckle under compressive loads which would degrade load-bearing capabilities of the structures. Fast yet accurate estimations of buckling loads and associated mode shapes are critical in the early stages of design and optimization. This paper presents a method based on the mechanics of structure genome (MSG) for the global buckling analysis of stiffened composite panels. The original geometrically nonlinear problem is mathematically reduced to a geometrically linear constitutive modeling of the structure genome and a geometrically nonlinear formulation of the macroscopic plate analysis. Validation case studies show that MSG is highly accurate and efficient as compared to the detailed finite element analysis. The buckling behaviors of stiffened panels under various boundary conditions and loadings are investigated.

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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Aeronautics and AstronauticsPurdue UniversityWest LafayetteUSA
  2. 2.Daniel Guggenheim School of Aerospace EngineeringGeorgia Institute of TechnologyAtlantaUSA

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