Details
| Original language | English |
|---|---|
| Journal | Mechanics of Advanced Materials and Structures |
| Early online date | 4 Dec 2023 |
| Publication status | E-pub ahead of print - 4 Dec 2023 |
Abstract
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.
Keywords
- Bistable, composites, dynamics, finite elements, MFC actuators, snap-through
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Mathematics(all)
- Materials Science(all)
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Mechanics of Advanced Materials and Structures, 04.12.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Dynamic response of piezoelectrically actuated bistable cross-ply laminates under oscillating impulse voltages
AU - Danish, B.
AU - Nair, Anilkumar P M
AU - Haldar, Ayan
AU - Rao, B. N.
N1 - Funding Information: The first author would like to acknowledge the Prime Minister Research Fellowship (PMRF) scheme for the research grant during his doctoral research.
PY - 2023/12/4
Y1 - 2023/12/4
N2 - 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.
AB - 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.
KW - Bistable
KW - composites
KW - dynamics
KW - finite elements
KW - MFC actuators
KW - snap-through
UR - http://www.scopus.com/inward/record.url?scp=85178398873&partnerID=8YFLogxK
U2 - 10.1080/15376494.2023.2283791
DO - 10.1080/15376494.2023.2283791
M3 - Article
AN - SCOPUS:85178398873
JO - Mechanics of Advanced Materials and Structures
JF - Mechanics of Advanced Materials and Structures
SN - 1537-6494
ER -