Positioning of Embedded Optical Fibres Sensors for the Monitoring of Buckling in Stiffened Composite Panels

被引：11

作者：

Riccio, A. ^{[1
]}

Di Caprio, F. ^{[1
]}

Camerlingo, F. ^{[2
]}

Scaramuzzino, F. ^{[1
]}

Gambino, B. ^{[2
]}

机构：

[1] Univ Naples 2, Dept Aerosp & Mech Engn, I-81031 Aversa, CE, Italy

[2] Alenia Aeronaut Spa, I-80038 Pomigliano, Na, Italy

来源：

APPLIED COMPOSITE MATERIALS | 2013年 / 20卷 / 01期

关键词：

Buckling; Finite element analysis (FEA); Optimization; Optical fibres monitoring; Mechanical testing;

D O I：

10.1007/s10443-012-9252-0

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A numerical/experimental study on the monitoring of the skin buckling phenomenon in stiffened composite panels by embedding optical fibres is presented in this paper. A numerical procedure has been introduced able to provide the most efficient embedded optical fibre path (with minimum length) fulfilling the grating sensors locations and directions requirements whilst satisfying specific embedding/integrity constraints for the optical fibre. The developed numerical procedure has been applied to a stiffened composite panel under compression load. The best location and direction of the grating sensors and the optimal optical fibre path for the monitoring of the skin buckling phenomenon have been found by performing respectively non-linear FEM analyses and optimization analyses. The procedure has been validated by means of an experimental testing activity on a stiffened panel instrumented with embedded optical fibres and back-to-back strain gauges which have been positioned according to the numerically estimated grating sensors locations and directions.

引用

页码：73 / 86

页数：14

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