Voltage modulation of elastic properties of asymmetric hybrid lattice structure
Voltage modulation of elastic properties of asymmetric hybrid lattice structure
2-D lattice structures have gained significant attention in the last few decades. Extensive analytical and experimental studies have been conducted to determine the elastic properties of the lattice structures. Further, the variation in the elastic properties of the passive lattice structures by changing various dimensional parameters and geometry have also been studied. However, once manufactured, it is impossible to vary the elastic properties of these lattice structures. A few studies have been conducted to understand the modulation of the elastic properties in symmetric hybrid lattice structures. This article proposes a geometrically asymmetric hybrid lattice structure having piezoelectric material on the opposite faces (top and bottom) of the consecutive inclined cell walls, respectively. The closed-form expressions have been derived by considering a bottom-up approach neglecting the axial deformation of the cell walls. Young's modulus has emerged to be a function of externally applied voltage, warranting control of the elastic properties of the structure even after manufacturing. In contrast, Poisson's ratio is independent of externally applied voltage. The transition from negative to positive values for Young's modulus has also been observed at specific cell angle values and externally applied voltage to stress ratio. This study intends to provide the basic framework for voltage-dependent elastic properties in asymmetric lattice structures for potential use in various futuristic multi-functional structural systems and devices across different length scales.
Active honeycombs, Asymmetric hybrid honeycomb, Elastic properties of lattices, Multi-physical lattice microstructures, Negative Young's modulus, Piezoelectric material
Singh, Amanpreet
916a5be9-a91b-4d31-8dfa-88e9cff633d9
Mukhopadhyay, Tanmoy
2ae18ab0-7477-40ac-ae22-76face7be475
Adhikari, Sondipon
12cf62cf-340a-4da6-9ad4-f4dd64384a73
Bhattacharya, Bishakh
c3f6b49e-3efa-415a-88b1-ae4f108ad70d
20 April 2022
Singh, Amanpreet
916a5be9-a91b-4d31-8dfa-88e9cff633d9
Mukhopadhyay, Tanmoy
2ae18ab0-7477-40ac-ae22-76face7be475
Adhikari, Sondipon
12cf62cf-340a-4da6-9ad4-f4dd64384a73
Bhattacharya, Bishakh
c3f6b49e-3efa-415a-88b1-ae4f108ad70d
Singh, Amanpreet, Mukhopadhyay, Tanmoy, Adhikari, Sondipon and Bhattacharya, Bishakh
(2022)
Voltage modulation of elastic properties of asymmetric hybrid lattice structure.
Han, Jae-Hung, Shahab, Shima and Yang, Jinkyu
(eds.)
In Active and Passive Smart Structures and Integrated Systems XVI.
vol. 12043,
SPIE..
(doi:10.1117/12.2612747).
Record type:
Conference or Workshop Item
(Paper)
Abstract
2-D lattice structures have gained significant attention in the last few decades. Extensive analytical and experimental studies have been conducted to determine the elastic properties of the lattice structures. Further, the variation in the elastic properties of the passive lattice structures by changing various dimensional parameters and geometry have also been studied. However, once manufactured, it is impossible to vary the elastic properties of these lattice structures. A few studies have been conducted to understand the modulation of the elastic properties in symmetric hybrid lattice structures. This article proposes a geometrically asymmetric hybrid lattice structure having piezoelectric material on the opposite faces (top and bottom) of the consecutive inclined cell walls, respectively. The closed-form expressions have been derived by considering a bottom-up approach neglecting the axial deformation of the cell walls. Young's modulus has emerged to be a function of externally applied voltage, warranting control of the elastic properties of the structure even after manufacturing. In contrast, Poisson's ratio is independent of externally applied voltage. The transition from negative to positive values for Young's modulus has also been observed at specific cell angle values and externally applied voltage to stress ratio. This study intends to provide the basic framework for voltage-dependent elastic properties in asymmetric lattice structures for potential use in various futuristic multi-functional structural systems and devices across different length scales.
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More information
Published date: 20 April 2022
Additional Information:
Funding Information:
The authors acknowledge SPIE for providing the student conference support and Visvesvaraya PhD scheme, Media Lab Asia, Ministry of Electronics and Information Technology, Government of India, (Unique Awardee Number MEITY-PHD-888).
Publisher Copyright:
© 2022 SPIE.
Venue - Dates:
Active and Passive Smart Structures and Integrated Systems XVI 2022, , Virtual, Online, 2022-04-04 - 2022-04-10
Keywords:
Active honeycombs, Asymmetric hybrid honeycomb, Elastic properties of lattices, Multi-physical lattice microstructures, Negative Young's modulus, Piezoelectric material
Identifiers
Local EPrints ID: 483923
URI: http://eprints.soton.ac.uk/id/eprint/483923
ISSN: 0277-786X
PURE UUID: 6fe794fc-6033-4d1e-a165-ed8f80b81d6e
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Date deposited: 07 Nov 2023 18:29
Last modified: 18 Mar 2024 04:10
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Contributors
Author:
Amanpreet Singh
Author:
Tanmoy Mukhopadhyay
Author:
Sondipon Adhikari
Author:
Bishakh Bhattacharya
Editor:
Jae-Hung Han
Editor:
Shima Shahab
Editor:
Jinkyu Yang
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