Dynamic response of piezoelectrically actuated bistable cross-ply laminates under oscillating impulse voltages

Multistable composite laminates are ideal candidates for morphing applications due to their ability to switch between multiple stable states with proper actuation mechanisms. Surface-bonded macro fiber composite (MFC) actuators to trigger snap-through between one stable shape to another by applying...

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Bibliographic Details
Published in:Mechanics of advanced materials and structures 2024-12, Vol.31 (28), p.9981-10001
Main Authors: Danish, B., Anilkumar, P. M., Haldar, Ayan, Rao, B. N.
Format: Article
Language:English
Subjects:
Actuation
Actuators
Bistable
composites
Configurations
Dynamic response
dynamics
Fiber composites
finite elements
Laminates
MFC actuators
Morphing
snap-through
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Summary:Multistable composite laminates are ideal candidates for morphing applications due to their ability to switch between multiple stable states with proper actuation mechanisms. Surface-bonded macro fiber composite (MFC) actuators to trigger snap-through between one stable shape to another by applying external voltages have attracted considerable attention recently. In this work, dynamic snap-through of bistable unsymmetric cross-ply laminate using MFC actuators under oscillating impulse voltages has been investigated. Both unimorph and bimorph laminate-MFC configurations are considered for the analysis. The stable equilibrium configurations of the MFC-actuated bistable laminate, considering the effects of MFC bondage, are discussed using the proposed finite element (FE) framework. Under the action of oscillating impulse voltages, the single-well and cross-well oscillations of the active bistable plate are analyzed in detail through time responses and phase portraits. The FE results show the advantage of actuating MFC layers through the oscillating impulse voltages as it leads to a reduction in the maximum snap-through voltage requirements.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2023.2283791