Predicting Failure in Multi-Bolt Composite Joints Using Finite Element Analysis and Bearing-Bypass Diagrams

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Title: Predicting Failure in Multi-Bolt Composite Joints Using Finite Element Analysis and Bearing-Bypass Diagrams
Authors: McCarthy, Conor T.
McCarthy, M. A.
Gilchrist, M. D.
Permanent link: http://hdl.handle.net/10197/5917
Date: 15-Sep-2005
Abstract: A three-dimensional finite element model of a three-bolt, single-lap composite joint is constructed using the non-linear finite element code MSC.Marc. The model is validated against an experiment where the load distribution in the joint is measured using instrumented bolts. Two different joint configurations are examined, one with neat-fit clearances at each bolt-hole and another with a 240 μm clearance at one hole with neat-fits at the others. Bearing and by-pass stresses are extracted from the model and used in conjunction with published bearing/by-pass diagrams to predict the failure load, mode and location for the joints. It is shown that the proposed model accurately predicts the failure behaviour of the joints, as determined from experiments on three-bolt joints loaded to failure. It is also shown that introducing a clearance into one hole significantly changes the failure sequence, but does not affect the ultimate failure load, mode orlocation. The proposed method demonstrates a simple approach to preg damage in complex multi-bolt composite joints.
Type of material: Journal Article
Publisher: Trans Tech Publications
Copyright (published version): 2005 Trans Tech Publications
Keywords: Composites;Bolted joints;Damage;Finite element analysis;Bearing By-pass diagrams
DOI: 10.4028/www.scientific.net/KEM.293-294.591
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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