Interaction between optical fibre sensors and matrix cracks in cross-ply GRP laminates - part 1: passive optical fibres

被引：13

作者：

Barton, EN

Ogin, SL ^{[1
]}

Thorne, AM

Reed, GT

Le Page, BH

机构：

[1] Univ Surrey, Sch Mech & Mat Engn, Guildford GU2 5XH, Surrey, England

[2] Univ Surrey, Sch Engn Environm, Guildford GU2 5XH, Surrey, England

[3] Univ Surrey, Sch Elect Engn Informat & Math, Guildford GU2 5XH, Surrey, England

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2001年 / 61卷 / 13期

基金：

英国工程与自然科学研究理事会;

关键词：

smart materials; matrix cracking; passive optical fibres;

D O I：

10.1016/S0266-3538(01)00086-0

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The obtrusivity of a passive optical fibre embedded in the 0 degrees ply of a model cross-ply GRP laminate has been investigated experimentally and theoretically. The experimental results show that for quasi-static loading and cyclic loads with a peak strain greater than the quasi-static cracking threshold, both the initiation and development of matrix cracks are insensitive to the presence of the optical fibre. However, for cyclic loading with a peak strain just below the cracking threshold, the matrix crack-growth rate is reduced significantly in the vicinity of the optical fibre. The reduction in the crack-growth rate can be understood in terms of a reduction in the strain-energy release rate for cracking as a consequence of the local stiffening of the 0 degrees ply due to the presence of the optical fibre. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1863 / 1869

页数：7

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