Second order hierarchical sandwich structure made of self-reinforced polymers by means of a continuous folding process
2016 (engelsk)Inngår i: Materials & design, ISSN 0264-1275, E-ISSN 1873-4197, Vol. 102, s. 313-320Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
One typical way to obtain higher stiffness and strength to weight ratios within structural applications is to use sandwich structures containing lightweight cellular cores. In this study a novel second order hierarchical sandwich structure and its manufacturing principle are described. The whole hierarchical structure is made of a fully recyclable material - different forms of poly-ethylene terephthalate (PET): PET matrix, reinforced with PET fibres (Self reinforced - SrPET) and PET foam resulting in a recyclable structure. The manufacturing path is developed such that it can be implemented within a continuous production line. Out-of-plane compression test are carried out in order to determine the stiffness and strength properties of the proposed structure. An analytical model is developed for evaluating the out-of-plane stiffness and strength properties and used for investigating the influence of the geometric parameters on the structural performance of the proposed hierarchical sandwich structure
sted, utgiver, år, opplag, sider
Elsevier Ltd , 2016. Vol. 102, s. 313-320
Emneord [en]
Folded structure, Hierarchical sandwich structure, Optimization, Self-reinforced polymers, Thermoplastic composites, Compression testing, Ethylene, Manufacture, Polymers, Reinforced plastics, Reinforcement, Sandwich structures, Stiffness, Folded structures, Hierarchical structures, Out-of-plane compression, Stiffness and strength properties, Strength to weight ratio, Structural applications, Thermoplastic composite, Structural optimization
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-42076DOI: 10.1016/j.matdes.2016.04.049Scopus ID: 2-s2.0-84973098659OAI: oai:DiVA.org:ri-42076DiVA, id: diva2:1378688
Merknad
Funding details: Development; Funding details: 2007-2013; Funding text 1: This work was partially supported by the strategic grant POSDRU/159/1.5/S/137070 (2014) of the Ministry of Labour, Family and Social Protection , Romania, co-financed by the European Social Fund – Investing in People, within the Sectorial Operational Programme Human Resources Development 2007-2013. Christof Schneider was partly financed by the Centre of ECO2 Vehicle Design at the Department of Aeronautical and Vehicle Engineering, Royal Institute of Technology, KTH Sweden.
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