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Study on T-bolt and pin-loaded bearing strengths and damage accumulation in E-glass/epoxy blade applications
journal contribution
posted on 2023-05-18, 06:08 authored by Ashworth Briggs, AJE, Zhang, ZY, Dhakal, HNIn 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.
History
Publication title
Journal of Composite MaterialsVolume
49Issue
9Pagination
1047-1056ISSN
0021-9983Department/School
Australian Maritime CollegePublisher
Sage Publications LtdPlace of publication
6 Bonhill Street, London, England, Ec2A 4PuRights statement
Copyright 2014 The AuthorsRepository Status
- Restricted