Unidirectional carbon fibre reinforced polyamide-12 composites with enhanced strain to tensile failure by introducing fibre waviness

被引：30
作者：
Diao, Hele [1 ]
Robinson, Paul [2 ]
Wisnom, Michael R. [3 ]
Bismarck, Alexander [1 ,4 ]
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, Polymer & Composite Engn Grp, South Kensington Campus, London SW7 2AZ, England
[2] Univ London Imperial Coll Sci Technol & Med, Dept Aeronaut, Composite Ctr, South Kensington Campus, London SW7 2AZ, England
[3] Univ Bristol, Dept Aerosp Engn, Adv Composite Ctr Innovat & Sci, Bristol BS8 1TR, Avon, England
[4] Univ Vienna, Fac Chem, Inst Mat Chem & Res, Polymer & Composite Engn Grp, Wahringer Str 42, A-1090 Vienna, Austria
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2016年 / 87卷
基金：
英国工程与自然科学研究理事会;
关键词：
Polymer-matrix composites (PMCs); Carbon fibre; Mechanical properties; THERMOPLASTIC COMPOSITES; COMPRESSIVE STRENGTH; PSEUDO-DUCTILITY; BEHAVIOR;
D O I：
10.1016/j.compositesa.2016.04.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Unidirectional (UD) carbon fibre reinforced polymers offer high specific strength and stiffness but they fail in a catastrophic manner with little warning. Gas-texturing and non-constrained annealing were used to introduce fibre waviness into UD polyamide 12 composites produced by wet-impregnation hoping to produce composites with a more gradual failure mode and increased failure strain. Both methods increased the variation of fibre alignment angle compared to the control samples. The composites containing wavy fibres exhibited a stepwise, gradual failure mode under strain controlled uniaxial tension rather than a catastrophic failure, observed in control samples. Gas-texturing damaged the fibres resulting in a decrease of the tensile strength and strain to failure, which resulted in composites with lower tensile strength and ultimate failure strain than the control composites. Non-constrained annealing of carbon fibre/PA-12 produced wavy fibre composites with ultimate failure strain of 2%, significantly higher than 1.6% of the control composite. (C) 2016 Elsevier Ltd. All rights reserved.
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收藏
页码：186 / 193
页数：8
相关论文
共 26 条
[1]  
Bunsell A.R., 2009, HDB TENSILE PROPERTI
[2]  
Chan W.S., 1994, Journal of Thermoplastic Composite Materials, V7, P243, DOI 10.1177/089270579400700306
[3]   Effects of material and geometric nonlinearities on the tensile and compressive behavior of composite materials with fiber waviness [J].
Chun, HJ ;
Shin, JY ;
Daniel, IM .
COMPOSITES SCIENCE AND TECHNOLOGY, 2001, 61 (01) :125-134
[4]   Design and characterisation of advanced pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites [J].
Czel, Gergely ;
Jalalvand, Meisam ;
Wisnom, Michael R. .
COMPOSITE STRUCTURES, 2016, 143 :362-370
[5]   Demonstration of pseudo-ductility in high performance glass/epoxy composites by hybridisation with thin-ply carbon prepreg [J].
Czel, Gergely ;
Wisnom, M. R. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2013, 52 :23-30
[6]   Pseudo-ductility and damage suppression in thin ply CFRP angle-ply laminates [J].
Fuller, J. D. ;
Wisnom, M. R. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2015, 69 :64-71
[7]   Exploring the potential of interleaving to delay catastrophic failure in unidirectional composites under tensile loading [J].
Grail, Gael ;
Pimenta, Soraia ;
Pinho, Silvestre T. ;
Robinson, Paul .
COMPOSITES SCIENCE AND TECHNOLOGY, 2015, 106 :100-109
[8]   Wet impregnation as route to unidirectional carbon fibre reinforced thermoplastic composites manufacturing [J].
Ho, K. K. C. ;
Shamsuddin, S-R ;
Riaz, S. ;
Lamorinere, S. ;
Tran, M. Q. ;
Javaid, A. ;
Bismarck, A. .
PLASTICS RUBBER AND COMPOSITES, 2011, 40 (02) :100-107
[9]   Effect of fiber waviness on stiffness and strength reduction of unidirectional composites under compressive loading [J].
Hsiao, HM ;
Daniel, IM .
COMPOSITES SCIENCE AND TECHNOLOGY, 1996, 56 (05) :581-593
[10]   Numerical modelling of the damage modes in UD thin carbon/glass hybrid laminates [J].
Jalalvand, Meisam ;
Czel, Gergely ;
Wisnom, Michael R. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2014, 94 :39-47
123