Influence of water ageing on mechanical properties and damage events of two reinforced composite materials: Flax-fibres and glass-fibres

被引：351

作者：

Assarar, M. ^{[1
]}

Scida, D. ^{[1
]}

El Mahi, A. ^{[2
]}

Poilane, C. ^{[3
]}

Ayad, R. ^{[1
]}

机构：

[1] Univ Reims, GRESPI, IUT Troyes, F-10026 Troyes, France

[2] Univ Maine, LAUM, CNRS, UMR 6613, F-72085 Le Mans 9, France

[3] Univ Caen Basse Normandie, LRPMN, IUT Alencon, Pole Univ Montfoulon, F-61250 Damigny, France

来源：

MATERIALS & DESIGN | 2011年 / 32卷 / 02期

关键词：

Flax-fibre composite; Acoustic emission; Water aging; Natural materials; Mechanical; Non-destructive testing (NDT); ACOUSTIC-EMISSION; MOISTURE ABSORPTION; POLYPROPYLENE; BEHAVIOR; FRACTURE;

D O I：

10.1016/j.matdes.2010.07.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Moisture absorption and durability in water environment are major concerns for natural fibres as reinforcement in composites. This paper presents a study on the influence of water ageing on mechanical properties and damage events of flax-fibre composites, compared with glass-fibre composites. The effects of the immersion treatment on the tensile characteristics, water absorption and acoustic emission (AE) recording were investigated. The water absorption results for the flax-fibre composites show that the evolution appears to be Fickian and the saturated weight gain is 12 times as high that the glass-fibre composites. Decreasing continuously with increasing water immersion time, the tensile modulus and the failure strain of flax-fibre composites are hardly affected by water ageing whereas only the tensile stress is reduced regarding the glass-fibre composites. AE indicate that matrix-fibres interface weakening is the main damage mechanism induced by water ageing for both composites. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：788 / 795

页数：8

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