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Increasing energy absorption and reliability of beams by improved architecture and web-flange junctions
Biteam AB, Danderydsgatan 23, Stockholm, SE 114 26, Sweden.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.ORCID iD: 0000-0002-9207-3404
Biteam AB, Danderydsgatan 23, Stockholm, SE 114 26, Sweden.
2019 (English)In: Advanced Materials for Defense: 1st World Conference on Advanced Materials for Defense (AUXDEFENSE 2018), Baech: Trans Tech Publications Ltd , 2019, p. 114-119Conference paper, Published paper (Refereed)
Abstract [en]

Lightweight and strong composite material beams are increasingly sought to quickly, easily, and cost-effectively transport and setup a variety of constructions such as bridges, cabins/stores/shelters, vehicles etc. For structural beams produced as conventional laminated composite materials, their weak areas tend to occur at intersections such as web-flange junctions due to absence of fibres bridging the interconnections. This drawback can however be overcome with development of profiled 3D textile reinforcements having combination architectures and constituent web-flange parts inherently mutually interconnected through fibre interlacement. In addition to general strength improvement, beams containing such novel reinforcement architectures also show increased energy absorption capability due to the mutual web-flange integration at the junctions. An 'I' and a 'flanged-triangle' cross-section beams were produced by a novel non-conventional weaving method, using carbon fibres as reinforcement, and their energy absorption capabilities were tested. These beams respectively absorbed over 50% and 300% more energy per weight in bending, compared to metal counterparts. This paper presents some relevant aspects of these innovative beams.

Place, publisher, year, edition, pages
Baech: Trans Tech Publications Ltd , 2019. p. 114-119
Series
Key Engineering Materials, ISSN 1662-9795 ; 812
Keywords [en]
Combination-architecture, Energy absorption, Profiled beam, Web-flange junction, Architecture, Glass ceramics, Laminated composites, Network security, Reinforcement, Weaving, 3D textiles, Conventional weaving, Energy absorption capability, Strength improvements, Structural beams, Web-flange junctions, Flanges
National Category
Composite Science and Engineering
Identifiers
URN: urn:nbn:se:kth:diva-262436DOI: 10.4028/www.scientific.net/KEM.812.114Scopus ID: 2-s2.0-85071597447ISBN: 9783035713664 (print)ISBN: 9783035733662 (electronic)OAI: oai:DiVA.org:kth-262436DiVA, id: diva2:1367586
Conference
1st World Conference on Advanced Materials for Defense, AUXDEFENSE 2018, Lisbon, Portugal, 3-4 September 2018
Note

QC 20191104

Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2019-11-04Bibliographically approved

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Hallström, Stefan

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