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Stiffness-modifiable composite for pedestrian protection
Composite Structures, Swerea SICOMP AB.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap. Composite Structures, Swerea SICOMP AB.
Composite Structures, Swerea SICOMP AB.
Visa övriga samt affilieringar
2014 (Engelska)Ingår i: 16th European Conference on Composite Materials, ECCM 2014: Seville, Spain, 22 - 26 June 2014, European Conference on Composite Materials, ECCM , 2014Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

A novel functional material allowing stiffness-reduction upon external stimulation was developed. Implementation of such technology in the design of a car front has high potential to result in increased protection of vulnerable road users (VRUs). The composite material is obtained by coating carbon fibres with a thermoplastic polymer in a continuous process, followed by infusion with an epoxy resin. The process is scalable for industrial use. The coating process was optimized regarding coating efficiency, energy consumption, risks involved for operating personnel and environment, and tailored to gain the optimal coating thickness obtained from numerical calculations. A drastic decrease in transversal stiffness could be detected for the composite material by dynamic mechanical thermal analysis (DMTA), when the temperature was increased above the glass transition temperature of the thermoplastic interphase. The ability of the material to achieve such temperature and associated reduction in stiffness by the application of current was verified using a special 3-point bending setup developed for this task.

Ort, förlag, år, upplaga, sidor
European Conference on Composite Materials, ECCM , 2014.
Nyckelord [en]
Fibre/matrix interface, Pedestrian protection, Stiffness-variable composite
Nationell ämneskategori
Kompositmaterial och -teknik
Forskningsämne
Polymera konstruktionsmaterial
Identifikatorer
URN: urn:nbn:se:ltu:diva-37523Scopus ID: 2-s2.0-84915756456Lokalt ID: b96281b7-3ae6-4f50-8707-5f601f35e790ISBN: 9780000000002 (tryckt)OAI: oai:DiVA.org:ltu-37523DiVA, id: diva2:1011021
Konferens
European Conference on Composite Materials : 22/06/2014 - 26/06/2014
Anmärkning

Godkänd; 2014; 20141217 (andbra)

Tillgänglig från: 2016-10-03 Skapad: 2016-10-03 Senast uppdaterad: 2019-08-20Bibliografiskt granskad

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Marklund, ErikAsp, Leif

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Totalt: 265 träffar
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