Cargando…
Fibre Bragg Gratings for the Monitoring of Wooden Structures
The aim of this work was to develop and validate an experimental methodology suitable for analysing on-site the behaviour of fibre-reinforced wooden structures. The proposed measurement method is based on the application of fibre Bragg grating (FBG) strain sensors. An analysis of adhesive behaviour...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793505/ https://www.ncbi.nlm.nih.gov/pubmed/29267248 http://dx.doi.org/10.3390/ma11010007 |
_version_ | 1783296967518978048 |
---|---|
author | Marsili, Roberto Rossi, Gianluca Speranzini, Emanuela |
author_facet | Marsili, Roberto Rossi, Gianluca Speranzini, Emanuela |
author_sort | Marsili, Roberto |
collection | PubMed |
description | The aim of this work was to develop and validate an experimental methodology suitable for analysing on-site the behaviour of fibre-reinforced wooden structures. The proposed measurement method is based on the application of fibre Bragg grating (FBG) strain sensors. An analysis of adhesive behaviour was performed preliminarily, which provided indications for choosing the type of adhesive and for the fibre bonding length in accordance with the volume of measurement. The first series of tests was carried out on wood samples to verify the coupling between the measuring sensor and the wood support when the latter is subject to mechanical stresses. The second investigation was done on site to test the behaviour of a historical wood floor before and after reinforcement by means of a series of tests performed using optical fibres with the Bragg grating. The optical fibre system measurements were compared to those obtained using a laser vibrometer, a measurement system of proven stability and precision. The comparison makes it possible to confirm the validity of the results and the reliability of the system for the monitoring of historic wooden structures. |
format | Online Article Text |
id | pubmed-5793505 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-57935052018-02-07 Fibre Bragg Gratings for the Monitoring of Wooden Structures Marsili, Roberto Rossi, Gianluca Speranzini, Emanuela Materials (Basel) Article The aim of this work was to develop and validate an experimental methodology suitable for analysing on-site the behaviour of fibre-reinforced wooden structures. The proposed measurement method is based on the application of fibre Bragg grating (FBG) strain sensors. An analysis of adhesive behaviour was performed preliminarily, which provided indications for choosing the type of adhesive and for the fibre bonding length in accordance with the volume of measurement. The first series of tests was carried out on wood samples to verify the coupling between the measuring sensor and the wood support when the latter is subject to mechanical stresses. The second investigation was done on site to test the behaviour of a historical wood floor before and after reinforcement by means of a series of tests performed using optical fibres with the Bragg grating. The optical fibre system measurements were compared to those obtained using a laser vibrometer, a measurement system of proven stability and precision. The comparison makes it possible to confirm the validity of the results and the reliability of the system for the monitoring of historic wooden structures. MDPI 2017-12-21 /pmc/articles/PMC5793505/ /pubmed/29267248 http://dx.doi.org/10.3390/ma11010007 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Marsili, Roberto Rossi, Gianluca Speranzini, Emanuela Fibre Bragg Gratings for the Monitoring of Wooden Structures |
title | Fibre Bragg Gratings for the Monitoring of Wooden Structures |
title_full | Fibre Bragg Gratings for the Monitoring of Wooden Structures |
title_fullStr | Fibre Bragg Gratings for the Monitoring of Wooden Structures |
title_full_unstemmed | Fibre Bragg Gratings for the Monitoring of Wooden Structures |
title_short | Fibre Bragg Gratings for the Monitoring of Wooden Structures |
title_sort | fibre bragg gratings for the monitoring of wooden structures |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793505/ https://www.ncbi.nlm.nih.gov/pubmed/29267248 http://dx.doi.org/10.3390/ma11010007 |
work_keys_str_mv | AT marsiliroberto fibrebragggratingsforthemonitoringofwoodenstructures AT rossigianluca fibrebragggratingsforthemonitoringofwoodenstructures AT speranziniemanuela fibrebragggratingsforthemonitoringofwoodenstructures |