Mode-I metal-composite interface fracture testing for fibre metal laminates

The main contribution of the present paper is the determination of the mode-I fracture of metal-composite interface region for fibre metal laminates (FMLs). A hybrid DCB configuration is proposed to investigate the mode-I fracture between metal-composite interface using experimental and numerical ap...

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Main Authors: Manikandan, Periyasamy, Chai, Gin Boay
Other Authors: School of Mechanical and Aerospace Engineering
Format: Journal Article
Language:English
Published: 2018
Subjects:
Online Access:https://hdl.handle.net/10356/85806
http://hdl.handle.net/10220/45282
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author Manikandan, Periyasamy
Chai, Gin Boay
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Manikandan, Periyasamy
Chai, Gin Boay
author_sort Manikandan, Periyasamy
collection NTU
description The main contribution of the present paper is the determination of the mode-I fracture of metal-composite interface region for fibre metal laminates (FMLs). A hybrid DCB configuration is proposed to investigate the mode-I fracture between metal-composite interface using experimental and numerical approaches. A computationally efficient and reliable finite element model was developed to account for the influence of metal plasticity on the measured fracture energy. The results of the experimental and numerical studies showed that metal plasticity increases the fracture energy of the metal-composite interface as the fracture event progresses. The applied energy truly utilized to propagate metal-composite interface fracture was predicted numerically by extracting the elastic strain energy data. The predicted true fracture energy was found to be approximately 50% smaller than the experimentally measured average propagation energy. The study concluded that metal plasticity in hybrid DCB configuration overpredicted the experimentally measured fracture energy, and this can be alleviated through numerical methodology such as the finite element approach as presented in this paper.
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spelling ntu-10356/858062023-03-04T17:15:52Z Mode-I metal-composite interface fracture testing for fibre metal laminates Manikandan, Periyasamy Chai, Gin Boay School of Mechanical and Aerospace Engineering Aerospace Engineering Cluster Metal-Composite Interface Fracture The main contribution of the present paper is the determination of the mode-I fracture of metal-composite interface region for fibre metal laminates (FMLs). A hybrid DCB configuration is proposed to investigate the mode-I fracture between metal-composite interface using experimental and numerical approaches. A computationally efficient and reliable finite element model was developed to account for the influence of metal plasticity on the measured fracture energy. The results of the experimental and numerical studies showed that metal plasticity increases the fracture energy of the metal-composite interface as the fracture event progresses. The applied energy truly utilized to propagate metal-composite interface fracture was predicted numerically by extracting the elastic strain energy data. The predicted true fracture energy was found to be approximately 50% smaller than the experimentally measured average propagation energy. The study concluded that metal plasticity in hybrid DCB configuration overpredicted the experimentally measured fracture energy, and this can be alleviated through numerical methodology such as the finite element approach as presented in this paper. Published version 2018-07-27T02:19:06Z 2019-12-06T16:10:33Z 2018-07-27T02:19:06Z 2019-12-06T16:10:33Z 2018 Journal Article Manikandan, P., & Chai, G. B. (2018). Mode-I metal-composite interface fracture testing for fibre metal laminates. Advances in Materials Science and Engineering, 2018, 4572989- . 1687-8434 https://hdl.handle.net/10356/85806 http://hdl.handle.net/10220/45282 10.1155/2018/4572989 en Advances in Materials Science and Engineering © 2018 Periyasamy Manikandan and Gin Boay Chai. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 11 p. application/pdf
spellingShingle Metal-Composite Interface
Fracture
Manikandan, Periyasamy
Chai, Gin Boay
Mode-I metal-composite interface fracture testing for fibre metal laminates
title Mode-I metal-composite interface fracture testing for fibre metal laminates
title_full Mode-I metal-composite interface fracture testing for fibre metal laminates
title_fullStr Mode-I metal-composite interface fracture testing for fibre metal laminates
title_full_unstemmed Mode-I metal-composite interface fracture testing for fibre metal laminates
title_short Mode-I metal-composite interface fracture testing for fibre metal laminates
title_sort mode i metal composite interface fracture testing for fibre metal laminates
topic Metal-Composite Interface
Fracture
url https://hdl.handle.net/10356/85806
http://hdl.handle.net/10220/45282
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AT chaiginboay modeimetalcompositeinterfacefracturetestingforfibremetallaminates