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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 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
0263-8223
662-673
Gan, Khong Wui
1171a844-69e5-436f-af7e-940485d8a25b
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 Wui
1171a844-69e5-436f-af7e-940485d8a25b
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 Wui, 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, pp. 662-673.

Record type: Article

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.

Text MAF_Paper_Submitted - Accepted Manuscript
Restricted to Repository staff only until 11 January 2019.

More information

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: http://eprints.soton.ac.uk/id/eprint/415082
ISSN: 0263-8223
PURE UUID: b540ff21-7167-4e63-b84a-42b6039ce35f

Catalogue record

Date deposited: 25 Oct 2017 16:30
Last modified: 30 Oct 2017 18:34

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