Damage detection in a radome sandwich material with embedded fiber opticsensors

E Bocherens; S Bourasseau; V Dewynter-MartyS PyM DupontP FerdinandH Berenger

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Damage detection in a radome sandwich material with embedded fiber opticsensors

机译：Damage detection in a radome sandwich material with embedded fiber opticsensors

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Embedded distributed micro/macro-bending multimode optical fibertransducers multiplexed in the time domain (photon counting, optical timedomain reflectometry) and quasi-distributed embedded in-fiber Bragg grating(FBG) filters based on wavelength measurement and demultiplexing encoding havebeen used for damage detection assessment in a radome sandwich structure. Bothmethods are well suited for detection and localization of permanent damageinduced by impacts of energy ranging from 8-20J. Optical fiber sensormeasurements have been compared to those given by classical health monitoringmethods using ultrasonics and shearography, as well as infrared thermography.

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《smart materials and structures》 |2000年第3期|310-315|共页
作者
E Bocherens; S Bourasseau; V Dewynter-MartyS PyM DupontP FerdinandH Berenger;
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Cuers-Pierrefeu, BP 888, F-83800 Toulon Naval, France;

LETI (CEA - Technologies Avancées) Départementd'Électronique et d'Instrumentation Nucléaire SPE Centre d'Etudes de Saclay,F-91191 Gif-sur-Yvette Cedex, France;

ONERA - Département Mécanique du Solide et de l'Endommagement,BP 72, F-92322 Châtillon Cedex, France;

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Damage detection in a radome sandwich material with embedded fiber opticsensors

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