Panel flutter analysis and optimization of composite tow steered plates

Conference paper (2017)

Authors

Thiago A.M. Guimarães Federal University of Uberlândia

Saullo G.P. Castro EMBRAER

Domingos A. Rade Division of Fundamental Science

Carlos E. S. Cesnik University of Michigan

Affiliation

External organisation

More Info

expand_more

To reference this document use:

http://resolver.tudelft.nl/uuid:22ad956b-45b5-4626-b3c4-d9679ef1148d

Published Date

2017

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Affiliation

External organisation

Abstract

The utter behavior of tow steered composite panels, in which the fiber placement follow curvilinear trajectory, is evaluated. A simple structural model based on Ritz method combined with supersonic aerodynamic piston theory is used to analyze the aeroelastic behavior. Classical lamination plate theory and symmetric stacking sequence are used and the fiber trajectories are defined by Lagrange interpolation functions. The utter stability boundaries for optimal conventional (constant stiffness laminates) layups and non- conventional (variable stiffness laminates) steered panels are numerically compared. The effect of in-plane loads is also accounted for in the aeroelastic analyses.