Solutions for morphing airfoil sections using bi-stable laminated composite structures

Cezar Gabriel Diaconu, Paul M. Weaver, Filippo Mattioni

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The present paper investigates the potential of using bi-stable laminated composite structures for morphing an airfoil section. The objective of the paper is to identify geometries and lay-ups of candidate configurations that offer multiple stable shapes for the airfoil section. Carbon-fiber laminated composites with non-symmetric laminate configurations are used for morphing the airfoil section. Thermal curing is used to induce residual stresses into the structure in order to achieve bi-stabillty. Three solutions that focus on morphing a flap-like structure and the airfoil section camber are proposed. Several geometries and laminate configurations are investigated using finite element nonlinear static analysis. The magnitude of loads required to actuate the airfoil section between the stable shapes is evaluated. The impact of manufacturability on producing viable morphing mechanisms within the airfoil section is also discussed.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages208-219
Number of pages12
ISBN (Print)1563478927, 9781563478925
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Waikiki, HI, United States
Duration: 23 Apr 200726 Apr 2007

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume1
ISSN (Print)0273-4508

Conference

Conference48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Country/TerritoryUnited States
CityWaikiki, HI
Period23/04/0726/04/07

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