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.

引用

页码：186 / 193

页数：8

共 26 条

[11]

Jones RM., 1999, MECH COMPOS MATER, P11

[12]

Kugler D, 2002, J COMPOS MATER, V36, P1451, DOI [10.1177/0021998302036012575, 10.1106/002199802023575]

[13] EFFECT OF FIBER WAVINESS ON THE NONLINEAR ELASTIC BEHAVIOR OF FLEXIBLE COMPOSITES [J].

KUO, CM ;

TAKAHASHI, K ;

CHOU, TW .

JOURNAL OF COMPOSITE MATERIALS, 1988, 22 (11) :1004-1025

[14] Effect of hybrid yarn structure on the delamination behaviour of thermoplastic composites [J].

Lauke, B ;

Bunzel, U ;

Schneider, K .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 1998, 29 (11) :1397-1409

[15] Compressive strength of fibre composites with random fibre waviness [J].

Liu, D ;

Fleck, NA ;

Sutcliffe, MF .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2004, 52 (07) :1481-1505

[16]

Matthews F.L., 2002, Composite Materials: Engineering and Science

[17] Tensile failure of laminates containing an embedded wrinkle; numerical and experimental study [J].

Mukhopadhyay, Supratik ;

Jones, Mike I. ;

Hallett, Stephen R. .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2015, 77 :219-228

[18] THERMOELASTIC ANALYSIS OF RESIDUAL-STRESSES IN UNIDIRECTIONAL, HIGH-PERFORMANCE COMPOSITES [J].

NAIRN, JA .

POLYMER COMPOSITES, 1985, 6 (02) :123-130

[19] THE EFFECT OF FIBER WAVINESS ON THE MECHANICAL-PROPERTIES OF UNIDIRECTIONAL FIBER COMPOSITES - A REVIEW [J].

PIGGOTT, MR .

COMPOSITES SCIENCE AND TECHNOLOGY, 1995, 53 (02) :201-205

[20] Wavy-ply sandwich with composite skins and crushable core for ductility and energy absorption [J].

Pimenta, Soraia ;

Robinson, Paul .

COMPOSITE STRUCTURES, 2014, 116 :364-376

← 1 2 3 →