Tailoring of bonded composite scarf joint interface for impact damage mitigation and stiffness compatibility
Tailoring of bonded composite scarf joint interface for impact damage mitigation and stiffness compatibility
A novel composite scarf joint is successfully fabricated with thermoplastic core shell microparticles incorporated into the interlaminar interface regions with a dual objective of mitigating the impact damage and improving the stiffness compatibility of the joint. The impact analysis of the joints revealed that the incorporation of microparticles led to a significant improvement of the impact load bearing capacity of joint and reduced the extent of the damage area. It is also observed from flexural tests that the microparticles reduces the stiffness of the laminate proportional to the weight fraction of the particles and thereby help design a joint adherend with controlled matching stiffness. This engineered scarf joint adherend configuration has the potential to minimise stiffness mismatch between a fatigue worn-out damaged composite part and the new scarf repair patch laminate designed for it. This shall help ensuring an easy restoration of uniform load distribution in the newly bonded composite scarf joints and repairs.
Fibre reinforced composites, Impact damage, Interfaces, Microparticles, Scarf joints, Stiffness mismatching
43-49
Ali, M.
71dd6748-6797-4734-a908-677587e8cac8
Tan, A.
3d644676-a520-4f41-b7f1-410d1c46689d
Joshi, S. C.
78e03ac3-95a0-4159-97c8-d9a258634a17
15 February 2016
Ali, M.
71dd6748-6797-4734-a908-677587e8cac8
Tan, A.
3d644676-a520-4f41-b7f1-410d1c46689d
Joshi, S. C.
78e03ac3-95a0-4159-97c8-d9a258634a17
Ali, M., Tan, A. and Joshi, S. C.
(2016)
Tailoring of bonded composite scarf joint interface for impact damage mitigation and stiffness compatibility.
Plastics, Rubber and Composites, 45 (2), .
(doi:10.1080/14658011.2015.1132619).
Abstract
A novel composite scarf joint is successfully fabricated with thermoplastic core shell microparticles incorporated into the interlaminar interface regions with a dual objective of mitigating the impact damage and improving the stiffness compatibility of the joint. The impact analysis of the joints revealed that the incorporation of microparticles led to a significant improvement of the impact load bearing capacity of joint and reduced the extent of the damage area. It is also observed from flexural tests that the microparticles reduces the stiffness of the laminate proportional to the weight fraction of the particles and thereby help design a joint adherend with controlled matching stiffness. This engineered scarf joint adherend configuration has the potential to minimise stiffness mismatch between a fatigue worn-out damaged composite part and the new scarf repair patch laminate designed for it. This shall help ensuring an easy restoration of uniform load distribution in the newly bonded composite scarf joints and repairs.
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More information
Accepted/In Press date: 12 December 2015
Published date: 15 February 2016
Additional Information:
Publisher Copyright:
© 2016 Institute of Materials, Minerals and Mining.
Keywords:
Fibre reinforced composites, Impact damage, Interfaces, Microparticles, Scarf joints, Stiffness mismatching
Identifiers
Local EPrints ID: 475802
URI: http://eprints.soton.ac.uk/id/eprint/475802
ISSN: 1465-8011
PURE UUID: be340601-0ba1-457f-bca2-f3c6e675b91a
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Date deposited: 28 Mar 2023 18:21
Last modified: 17 Mar 2024 00:12
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Contributors
Author:
M. Ali
Author:
A. Tan
Author:
S. C. Joshi
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