The static and dynamic response of CFRP tube reinforced polyurethane
作者： A. Jamil , Z.W. Guan , W.J. Cantwell
DOI: 10.1016/J.COMPSTRUCT.2016.11.043
关键词:
摘要: Abstract This paper presents an investigation on the mechanical properties of thermosetting polyurethane (TSPU) and thermoplastic (TPU) under quasi-static low velocity impact (LVI) loading. Hollow glass microspheres were added at different volume percentages to TSPU decrease density investigate effect properties. Incorporating fillers leads development a stepwise graded foam, which has been shown yield more constant plateau stress levels dynamic The work was extended reinforcing TPU matrix with carbon fibre reinforced plastic (CFRP) tubes, providing higher load-bearing capacity static Reinforcing syntactic resulted in 47.7% increase specific energy absorption (SEA), average value reaching 56.28 kJ/kg. compressive strength for also improved loading, where 65% observed, relative unreinforced TSPU. For significant improvements seen loading conditions, TPU, increases 629% 452% strain 25% 50%, respectively.
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