Failure Analysis of Single-Lap Single-Bolt Composite Joints with Countersunk Fasteners

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Abstract:

A failure analysis of a single-lap single-bolt composite joint with a countersunk fastener was carried out using a progressive damage model. The FE model considering the distributions of fine and coarse meshes, appropriate contact pairs and the bolt preload was established. Based on the analysis, the five stages in the load-displacement curve and the changes of tilt angle were discussed in detail as well as failure contours of hole laminates at typical events during the damage propagation are illustrated. The inherent development tendency of the tilt angle accompanying with the damage propagation in the single-lap joint vividly depict its failure process.

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425-428

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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