PSI - Issue 45
ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect
www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia
Procedia Structural Integrity 45 (2023) 140–147
© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Prof. Andrei Kotousov Abstract Carbon nanotubes (CNTs) from their discovery have received great attention due to their remarkable structural, electrical, thermal and mechanical properties. Many notable applications of CNTs were explored such as transistors, sensors, membranes, energy storage, drug delivery etc. Further to that, incorporating the CNTs properties into existing materials forms a new form of material- CNTs reinforced structures. The understanding of mechanical behaviour of these structures has a pivotal role in ensuring the system functions appropriately. Several attempts have been made to help further the understanding of dynamics of CNT reinforced structures, including beams, shells, and plates. Mass imperfections are a common manufacturing error and should be taken into account when modelling CNT reinforced structures. Thus, to contribute to the research of the dynamics of CNT reinforced plates, the specific objective of this study is to explore the vibrational behaviour of a CNTs reinforced plate with mass imperfection. The plate is first modelled by using the Kirchhoff theory, and the potential and kinetic energy, incorporating the mass imperfections effects are formulated and inserted in the Hamilton principle leading to the equations of motions. The equations are then solved using the modal decomposition method to obtain the natural frequencies of the system. The effects of changing the plate dimensions, CNT volume fractions, magnitude and location of the point mass are explored in details in this study. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Prof. Andrei Kotousov Keywords: CNT reinforced; the classic plate theory; mass imperfection; plate; vibrations. Abstract Carbon nanotubes (CNTs) from their discovery have received great attention due to their remarkable structural, electrical, thermal and mechanical properties. Many notable applications of CNTs were explored such as transistors, sensors, membranes, energy storage, drug delivery etc. Further to that, incorporating the CNTs properties into existing materials forms a new form of material- CNTs reinforced structures. The understanding of mechanical behaviour of these structures has a pivotal role in ensuring the system functions appropriately. Several attempts have been made to help further the understanding of dynamics of CNT reinforced structures, including beams, shells, and plates. Mass imperfections are a common manufacturing error and should be taken into account when modelling CNT reinforced structures. Thus, to contribute to the research of the dynamics of CNT reinforced plates, the specific objective of this study is to explore the vibrational behaviour of a CNTs reinforced plate with mass imperfection. The plate is first modelled by using the Kirchhoff theory, and the potential and kinetic energy, incorporating the mass imperfections effects are formulated and inserted in the Hamilton principle leading to the equations of motions. The equations are then solved using the modal decomposition method to obtain the natural frequencies of the system. The effects of changing the plate dimensions, CNT volume fractions, magnitude and location of the point mass are explored in details in this study. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Prof. Andrei Kotousov Keywords: CNT reinforced; the classic plate theory; mass imperfection; plate; vibrations. 17th Asia-Pacific Conference on Fracture and Strength and the 13th Conference on Structural Integrity and Failure (APCFS 2022 & SIF 2022) Dynamical behaviour of CNT reinforced plates with mass imperfections 17th Asia-Pacific Conference on Fracture and Strength and the 13th Conference on Structural Integrity and Failure (APCFS 2022 & SIF 2022) Dynamical behaviour of CNT reinforced plates with mass imperfections Oscar Zi Shao Ong a ,*, Mergen H. Ghayesh a and Dusan Losic b a School of Electrical and Mechanical Engineering, University of Adelaide, Adelaide, SA5005, Australia b School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide, SA5055, Australia Oscar Zi Shao Ong a ,*, Mergen H. Ghayesh a and Dusan Losic b a School of Electrical and Mechanical Engineering, University of Adelaide, Adelaide, SA5005, Australia b School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide, SA5055, Australia
* Corresponding author. E-mail address: oscarzishao.ong@adelaide.edu.au * Corresponding author. E-mail address: oscarzishao.ong@adelaide.edu.au
2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Prof. Andrei Kotousov 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Prof. Andrei Kotousov
2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Prof. Andrei Kotousov 10.1016/j.prostr.2023.05.007
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