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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/21053

Title: Double Beam Shear (DBS) – a new test method for determining interlaminar shear properties of composite laminates
Authors: Zhou, Gang
Nash, Peter
Whitaker, J.
Jones, Nicholas
Keywords: Interlaminar shear (ILS) test
ILS strength
Delamination and ILS test method
Issue Date: 2015
Publisher: Scandinavian Organizing and Scientific Committee
Citation: ZHOU, G. ...et al., 2015. Double Beam Shear (DBS) – a new test method for determining interlaminar shear properties of composite laminates. Presented at: The 20th International Conference on Composite Materials, ICCM20, 19th-24th July 2015, Copenhagen, Denmark.
Abstract: A new test method, the Double Beam Shear (DBS), has been developed at Loughborough University for the determination of the interlaminar shear (ILS) mechanical properties of fibre-reinforced laminated composite materials. The DBS uses an intact beam specimen with three equal-spaced supports under two loaders in such a way that each loader is applied at the middle of two supports. Under such set-up, two longitudinal pure ILS sections are induced in the two inner regions where the corresponding bending stresses are zero. It has been validated extensively using various composite laminates including carbon and E-glass fibre reinforcements, each in more than one thickness. The overwhelming majority of the tested specimens failed consistently in one of the inner regions with interior delamination. The magnitudes of the obtained ILS strengths of the composite materials are significantly greater than the corresponding apparent ILS strengths produced by the Short Beam Method. The DBS is especially able to induce ILS failure in certain composite materials, in which the Short Beam Method is not able to. The DBS Method is simple and easy to use.
Description: This is a conference paper.
Version: Published
URI: https://dspace.lboro.ac.uk/2134/21053
Publisher Link: http://www.iccm20.org/p/
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

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