New design for temperature-strain discrimination using fiber Bragg gratings embedded in laminated composites

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Rodriguez Cobo, L (Autor) Outra; Marques, AT (Autor) Outra; Lopez Higuera, JM (Autor) Outra; Santos, JL (Autor) FCUP; Frazao, O (Autor) FCUP

Revista

Título: Smart Materials and Structures

Vol. 22

Página Final: 105011

ISSN: 0964-1726

Editora: Institute of Physics Publishing

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 5 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-006-71D

DOI: 10.1088/0964-1726/22/10/105011

Abstract (EN): A new smart structure based on fiber Bragg gratings (FBGs) embedded into composite laminates for temperature and strain simultaneous measurement has been designed and experimentally tested. Two holes have been drilled at preset locations in the composite plate to create different strain sensitivities at different locations. The proposed design has been compared to three reference sensing heads also based on embedding FBGs into composite materials. Experimental results agree remarkably well with mechanical simulations and validate all the tested designs for the temperature-strain discrimination. Based on the same principle, another sensing head with a long single FBG embedded has also been designed and experimentally tested, obtaining temperature independent strain measurement.

Idioma: Inglês

Tipo (Avaliação Docente): Científica