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Study on T-bolt and pin-loaded bearing strengths and damage accumulation in E-glass/epoxy blade applications

Citation

Ashworth Briggs, AJE and Zhang, ZY and Dhakal, HN, Study on T-bolt and pin-loaded bearing strengths and damage accumulation in E-glass/epoxy blade applications, Journal of Composite Materials pp. 1-10. ISSN 0021-9983 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 The Authors

DOI: doi:10.1177/0021998314528825

Abstract

In this paper, the ultimate bearing strengths of pin-loaded double shear and T-bolt loaded connections were studied in thick composites, where the diameter of the pin equates to the thickness of the laminate. These bearing strengths were obtained for E-glass/epoxy laminates of [(45, 03)n ,45] and a Vf of 54%. It is found that the values for ultimate bearing failure and first non-linearity of pin-loaded connections should be reduced by 25% and 38%, respectively, when applied to T-Bolt connections. The failure modes prior to ultimate failure were primarily dominated by fibre matrix shear-out and delamination. As far as laminates with specific reinforcement architecture and a large percentage of reinforcement orientated to the load axis are concerned, the long-term service life of T-bolt connections may be impacted due to the visible onset of damage at a similar level to that accepted by Germanischer Lloyd for load introduction zones.

Item Details

Item Type:Refereed Article
Keywords:Laminate, bearing strength, T-bolt, polymer matrix composites, delamination
Research Division:Engineering
Research Group:Materials Engineering
Research Field:Composite and Hybrid Materials
Objective Division:Energy
Objective Group:Renewable Energy
Objective Field:Renewable Energy not elsewhere classified
Author:Ashworth Briggs, AJE (Mr Alex Ashworth Briggs)
ID Code:97621
Year Published:2014
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2015-01-05
Last Modified:2015-03-11
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