Residual strain and Young's modulus determination in cross-ply composites using an embedded aramid fibre strain sensor

被引：17

作者：

Arjyal, BP

Galiotis, C

Ogin, SL

Whattingham, RD

机构：

[1] Univ London Queen Mary & Westfield Coll, Dept Mat, London E1 4NS, England

[2] Inst Chem Engn & High Temp Chem Proc, GR-26500 Patras, Greece

[3] Univ Surrey, Guildford GU2 5XH, Surrey, England

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 1998年 / 29卷 / 11期

关键词：

residual strain; cross-ply composites; aramid fibre strain sensor;

D O I：

10.1016/S1359-835X(98)00057-8

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The enhancement of strain in the Vicinity of a transverse ply crack in a (0 degrees/90 degrees), GFRP laminate has been measured with the aid of an aramid fibre strain sensor embedded near one 0 degrees/90 degrees interface. This use of a laser Raman microprobe has revealed the strain profile parallel to the applied load in the 0 degrees ply both very close to the interface and up to a distance of 25 m from the interface. The strain profiles obtained enable the positions of the cracks to be determined when the laminate is loaded or unloaded, such that local measurements of the residual strain after cracking and the reduction in Young's modulus as a consequence of cracking can be made. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1363 / 1369

页数：7

共 21 条

[1]

*AM SOC TEST MAT, 1989, D303976 AM SOC TEST, P118

[2]

Arjyal B., 1996, Nondestructive Testing and Evaluation, V12, P355, DOI 10.1080/10589759608952859

[3]

ARJYAL BP, UNPUB J MAT SCI

[4]

On the behaviour of the residual strain produced by matrix cracking in cross-ply laminates [J].