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Investigation of the compression performance and failure mechanism of pseudo-ductile thin-ply hybrid composites: 21st International Conference on Composite Materials, ICCM 2017

Investigation of the compression performance and failure mechanism of pseudo-ductile thin-ply hybrid composites: 21st International Conference on Composite Materials, ICCM 2017
Investigation of the compression performance and failure mechanism of pseudo-ductile thin-ply hybrid composites: 21st International Conference on Composite Materials, ICCM 2017
Glass/carbon hybrid specimens were designed and loaded in four point bending in order to generate stable compressive failure which allows for detailed microscopic study of the damage mechanisms. An optical measurement technique based on the displacements of five dots on the specimen edge was applied to monitor the strain of the carbon layer from the curvature of the sample. A loading frame suitable to be inserted into the vacuum chamber of a scanning electron microscope was developed. A previously tested specimen was deformed again in the loading frame and its polished edge surface was scanned while it was kept under significant deformation. This technique was successful in visualising the microscopic deformations and allowed for a deeper understanding of the damage mechanisms. Compressive fragmentation, sliding along the inclined fracture surfaces and local delaminations around the crack tips were confirmed by micrographs. An explanatory schematic was generated, highlighting the microscopic displacements of a fragment upon further loading.
compression, fragmentation, hybrid composite, in-situ imaging, composite materials, damage mechanisms, optical measurement technique
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Suwarta, Putu
03f07d7c-4d52-42a3-820e-8b8a9be9857f
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Suwarta, Putu
03f07d7c-4d52-42a3-820e-8b8a9be9857f
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a

Czél, Gergely, Suwarta, Putu, Jalalvand, Meisam and Wisnom, Michael R. (2017) Investigation of the compression performance and failure mechanism of pseudo-ductile thin-ply hybrid composites: 21st International Conference on Composite Materials, ICCM 2017. 21st International Conference on Composite Materials, ICCM 2017, , Xi'an, China. 20 - 25 Aug 2017.

Record type: Conference or Workshop Item (Paper)

Abstract

Glass/carbon hybrid specimens were designed and loaded in four point bending in order to generate stable compressive failure which allows for detailed microscopic study of the damage mechanisms. An optical measurement technique based on the displacements of five dots on the specimen edge was applied to monitor the strain of the carbon layer from the curvature of the sample. A loading frame suitable to be inserted into the vacuum chamber of a scanning electron microscope was developed. A previously tested specimen was deformed again in the loading frame and its polished edge surface was scanned while it was kept under significant deformation. This technique was successful in visualising the microscopic deformations and allowed for a deeper understanding of the damage mechanisms. Compressive fragmentation, sliding along the inclined fracture surfaces and local delaminations around the crack tips were confirmed by micrographs. An explanatory schematic was generated, highlighting the microscopic displacements of a fragment upon further loading.

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More information

Published date: 25 August 2017
Venue - Dates: 21st International Conference on Composite Materials, ICCM 2017, , Xi'an, China, 2017-08-20 - 2017-08-25
Keywords: compression, fragmentation, hybrid composite, in-situ imaging, composite materials, damage mechanisms, optical measurement technique

Identifiers

Local EPrints ID: 446515
URI: http://eprints.soton.ac.uk/id/eprint/446515
PURE UUID: 3c3c8977-d93c-45a8-82f4-9bba468bae96
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 12 Feb 2021 17:30
Last modified: 18 Feb 2021 17:42

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Contributors

Author: Gergely Czél
Author: Putu Suwarta
Author: Michael R. Wisnom

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