test_moissonnage_selune
type: Agent

Methodological approach for performance and durability assessment of distributed fiber optic sensors : application to a specific fiber optic cable embedded in concrete
type: Distribution
access URL: https://theses.hal.science/tel-00962388
format: HTML
issued: 2026-05-05T23:01:33.719273
modified: 2026-05-05T23:01:33.608567

Methodological approach for performance and durability assessment of distributed fiber optic sensors : application to a specific fiber optic cable embedded in concrete
type: Dataset
contact point: Organization
  fn: CCSD
keyword: distributed-sensor
keyword: optical-fiber
keyword: theses
keyword: spiotherengineering-sciences-physicsother
keyword: strain
keyword: infoeu-reposemanticsdoctoralthesis
keyword: concrete
keyword: fibre-optique
keyword: durabilite
keyword: beton
keyword: performance
keyword: durability
keyword: deformation
keyword: mesures-reparties
landing page: https://theses.hal.science/tel-00962388
description: Structural Health Monitoring is a key factor in life-cycle management of civil structures. Truly distributed fiber optic sensors, composed by an optoelectronic device paired with an optical fiber in a cable, provide strain profiles over several kilometers with a centimeter resolution. They are thus able to provide relevant information on large structures. However, a preliminary performance assessment is required prior to any industrial application. Due to shear deformation of the cable's protective coating, strain measurements provided by the measuring system may differ from actual strains in the embedding medium. A methodology, based on mechanical tests and modelling, was thus developed to determine the relationship between measured/actual strains. It was applied to determine the mechanical response of a specific cable embedded in concrete. Performance assessment method was applied to a specific measuring system. Tests were carried out under laboratory conditions on the fiber optic cable, out of the concrete medium in a first stage, and then embedded in concrete structures. It enabled to evaluate its components and standard uncertainties. The cable could not be replaced after being embedded in concrete. It is necessary to evaluate the ageing effects on its mechanical properties to use it for a long term period. A specific study was carried out to determine the cable durability under chemical, thermal and mechanical solicitations
identifier: NNT: 2013PEST1113
issued: 2026-05-05T23:01:33.647869
language: fr
modified: 2026-05-05T23:01:33.647876