Embedded fiber Bragg grating sensor for internal strain measurements in polymeric materials

被引：98

作者：

Botsis, J ^{[1
]}

Humbert, L ^{[1
]}

Colpo, F ^{[1
]}

Giaccari, P ^{[1
]}

机构：

[1] EPFL, Swiss Fed Inst Technol, Lab Appl Mech & Reliabil Anal, Sch Engn, CH-1015 Lausanne, Switzerland

来源：

OPTICS AND LASERS IN ENGINEERING | 2005年 / 43卷 / 3-5期

关键词：

FBG sensors; internal strains; composite materials; OLCR method; distributed sensing;

D O I：

10.1016/j.optlaseng.2004.04.009

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, the essential aspects of fiber Bragg grating (FBG) sensors as a tool for internal strain measurements are discussed. The merits and the limitations are mentioned and experimental results of internal elastic strains measurements are presented in various configurations. These data are used to deduce: (a) bridging forces in a model composite, (b) strains through the thickness of a laminated composite, and (c) residual stresses in an epoxy cylinder. The experimental results are confronted with numerical models of the actual configuration and pertinent theoretical models. The present studies demonstrate that internal strain measurements using embedded FBG sensors, accompanied by appropriate modeling, can be used to characterize deformation and fracture behavior of polymeric materials at various scales. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：491 / 510

页数：20

共 32 条

[1]

Bosia F, 2004, COMPOS SCI TECHNOL, V64, P71, DOI 10.1016/S0566-3538(03)00201-X

[2] Deformation characteristics of composite laminates - part 1: speckle interferometry and embedded Bragg grating sensor measurements [J].