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Novel experimental procedure and determination of full displacement fields of delaminating composite layer interfaces for evaluation of the mode II cohesive law

Novel experimental procedure and determination of full displacement fields of delaminating composite layer interfaces for evaluation of the mode II cohesive law
Novel experimental procedure and determination of full displacement fields of delaminating composite layer interfaces for evaluation of the mode II cohesive law
A novel mode II fracture test setup based on a simple tensile loading scenario with a discontinuous ply specimen is proposed in the paper as the first step towards determination of the cohesive law of composite layer interfaces. Key outputs of the procedure are the full displacement fields obtained by correlation of high resolution SEM images taken during in-situ tensile tests. Analysis of the full displacement fields at subsequent stress levels allow for unique analysis of the damage zone and direct determination of the displacement jumps across the interface. The next phase of the work is the evaluation of the shear stresses at the interface necessary to determine the cohesive law.
cohesive zone modelling, composites, delamination, in-situ SEM testing
0013-7944
326-337
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Canal, Luis P.
1228d694-0f7c-43bb-8765-be464edb1c5c
González, Carlos D.
86339766-4ac6-4758-8a04-7850e3e9abd3
LLorca, Javier
9560fc88-10dc-4849-bb29-788012d138d6
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Canal, Luis P.
1228d694-0f7c-43bb-8765-be464edb1c5c
González, Carlos D.
86339766-4ac6-4758-8a04-7850e3e9abd3
LLorca, Javier
9560fc88-10dc-4849-bb29-788012d138d6

Czél, Gergely, Jalalvand, Meisam, Wisnom, Michael R., Canal, Luis P., González, Carlos D. and LLorca, Javier (2015) Novel experimental procedure and determination of full displacement fields of delaminating composite layer interfaces for evaluation of the mode II cohesive law. Engineering Fracture Mechanics, 149, 326-337. (doi:10.1016/j.engfracmech.2015.06.060).

Record type: Article

Abstract

A novel mode II fracture test setup based on a simple tensile loading scenario with a discontinuous ply specimen is proposed in the paper as the first step towards determination of the cohesive law of composite layer interfaces. Key outputs of the procedure are the full displacement fields obtained by correlation of high resolution SEM images taken during in-situ tensile tests. Analysis of the full displacement fields at subsequent stress levels allow for unique analysis of the damage zone and direct determination of the displacement jumps across the interface. The next phase of the work is the evaluation of the shear stresses at the interface necessary to determine the cohesive law.

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More information

Accepted/In Press date: 17 June 2015
Published date: 30 November 2015
Keywords: cohesive zone modelling, composites, delamination, in-situ SEM testing

Identifiers

Local EPrints ID: 446723
URI: http://eprints.soton.ac.uk/id/eprint/446723
ISSN: 0013-7944
PURE UUID: 6de32a2b-9d6a-4bfd-81f7-72827fdbf7b8
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 19 Feb 2021 17:30
Last modified: 20 Feb 2021 02:59

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Contributors

Author: Gergely Czél
Author: Michael R. Wisnom
Author: Luis P. Canal
Author: Carlos D. González
Author: Javier LLorca

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