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Metal reinforcement around fastener holes in composites
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
2016 (English)In: ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials, European Conference on Composite Materials, ECCM , 2016Conference paper (Refereed)
Abstract [en]

One way of improving the load capacity of bolted joints in composite components is to use metal inserts locally at the holes in order to reduce the bearing stress. In this paper an innovative local reinforcement concept is introduced where metal inserts are implemented in the form of stacked patches at the holes in order to improve the bearing strength of the composite. After doing some initial tests and a parameter study, some specimens with optimized stacked patch inserts were designed and tested. The specimens with optimized inserts show 50-60% improved bearing strength in pin-loaded tests which corresponds to a potential weight reduction of about 30%. These very promising results indicates that the efficiency of joints in composites can be improved significantly.

Place, publisher, year, edition, pages
European Conference on Composite Materials, ECCM , 2016.
Keyword [en]
Bearing strength, Hybrid joint, Insert, Patch, Stacked, Bolted joints, Composite materials, Bearing strengths, Hybrid joints, Reinforcement
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-216837Scopus ID: 2-s2.0-85018589746ISBN: 9783000533877 OAI: oai:DiVA.org:kth-216837DiVA: diva2:1161223
Conference
17th European Conference on Composite Materials, ECCM 2016, 26 June 2016 through 30 June 2016
Note

Conference code: 126913; Export Date: 24 October 2017; Conference Paper. QC 20171129

Available from: 2017-11-29 Created: 2017-11-29 Last updated: 2017-12-11Bibliographically approved

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Output format
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