Analysis of morphing, multi stable structures actuated by piezoelectric patches

PM Portela, PP Camanho, PM Weaver, IP Bond

Research output: Contribution to journalArticle (Academic Journal)peer-review

93 Citations (Scopus)

Abstract

In this article a novel morphing structure concept is studied using non-linear Finite Element Analysis (FEA). Bi-stable asymmetrical laminates can be snapped between two geometries through a buckling mechanism that is activated by an applied load. A piezoelectric Macro-Fibre Composite (MFC) actuator was chosen to provide this activation load. Bi-stable structures will maintain a given geometrical state without the need for a constant actuation force. FEA was used to predict the two stable geometries, to understand the buckling mechanism and to evaluate the feasibility of using MFC actuators for switching between states. Environmental effects like moisture absorption were also included in the analysis.
Translated title of the contributionAnalysis of morphing, multi stable structures actuated by piezoelectric patches
Original languageEnglish
Pages (from-to)347 - 356
Number of pages10
JournalComputers and Structures
Volume86 (3-5)
DOIs
Publication statusPublished - Feb 2008

Bibliographical note

Publisher: Elsevier

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