A novel fixture for determining the tension/compression-shear failure envelope of multidirectional composite laminates
A novel fixture for determining the tension/compression-shear failure envelope of multidirectional composite laminates
A new approach for biaxial loading of fibre reinforced composites is presented, based on the use of a Modified Arcan Fixture (MAF). In addition to combined tension-shear loading which can be achieved using a conventional Arcan fixture, the MAF allows the application of pure compression and compression-shear loading. Digital Image Correlation is used to obtain the full-field deformations of the specimens to establish the load response and failure behaviour for a range of multiaxial stress-strain states. The approach is demonstrated on glass/epoxy prepreg laminates. For unidirectional matrix dominated laminate it is shown that the failure envelope is described accurately by Puck’s inter-fibre failure theory. For the multidirectional matrix-dominated laminate it is shown that the in-situ strength is much greater than that predicted using the unidirectional properties. The potential of the MAF for characterisation over the entire combined tension-shear and compression-shear domains using a single fixture is demonstrated.
polymer-matrix composites, biaxial strength, biaxial mechanical testing, modified Arcan fixture
662-673
Gan, Khong
b0c1e988-d375-4bbc-acdc-c77a6da1f904
Laux, Tobias, Albert
8afcd5ae-8ebf-46b5-b0d5-5dfaa32e6b73
Talebi Taher, Siavash
4c32856a-5743-4a9e-ae19-afa11ae5580f
Barton, Janice
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Thomsen, Ole
f3e60b22-a09f-4d58-90da-d58e37d68047
15 January 2018
Gan, Khong
b0c1e988-d375-4bbc-acdc-c77a6da1f904
Laux, Tobias, Albert
8afcd5ae-8ebf-46b5-b0d5-5dfaa32e6b73
Talebi Taher, Siavash
4c32856a-5743-4a9e-ae19-afa11ae5580f
Barton, Janice
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Thomsen, Ole
f3e60b22-a09f-4d58-90da-d58e37d68047
Gan, Khong, Laux, Tobias, Albert, Talebi Taher, Siavash, Barton, Janice and Thomsen, Ole
(2018)
A novel fixture for determining the tension/compression-shear failure envelope of multidirectional composite laminates.
Composite Structures, 184, .
(doi:10.1016/j.compstruct.2017.10.030).
Abstract
A new approach for biaxial loading of fibre reinforced composites is presented, based on the use of a Modified Arcan Fixture (MAF). In addition to combined tension-shear loading which can be achieved using a conventional Arcan fixture, the MAF allows the application of pure compression and compression-shear loading. Digital Image Correlation is used to obtain the full-field deformations of the specimens to establish the load response and failure behaviour for a range of multiaxial stress-strain states. The approach is demonstrated on glass/epoxy prepreg laminates. For unidirectional matrix dominated laminate it is shown that the failure envelope is described accurately by Puck’s inter-fibre failure theory. For the multidirectional matrix-dominated laminate it is shown that the in-situ strength is much greater than that predicted using the unidirectional properties. The potential of the MAF for characterisation over the entire combined tension-shear and compression-shear domains using a single fixture is demonstrated.
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Accepted/In Press date: 12 October 2017
e-pub ahead of print date: 14 October 2017
Published date: 15 January 2018
Keywords:
polymer-matrix composites, biaxial strength, biaxial mechanical testing, modified Arcan fixture
Identifiers
Local EPrints ID: 415082
URI: https://eprints.soton.ac.uk/id/eprint/415082
ISSN: 0263-8223
PURE UUID: b540ff21-7167-4e63-b84a-42b6039ce35f
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Date deposited: 25 Oct 2017 16:30
Last modified: 28 Feb 2018 17:31
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Author:
Siavash Talebi Taher
University divisions
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