Local and global approaches for damage detection in composite structures by fiber optic sensors

Alfredo Güemes, Antonio Fernández-López, Patricia F. Díaz-Maroto, Ángel Lozano, Julián Sierra-Perez

    Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

    Resumen

    Fiber optic sensors cannot measure damage directly; for getting information about damage from strain measurements, additional strategies are needed, and several alternatives have been proposed. This paper discuss two different concepts: the first one is based on detecting the new strains appearing around a damage spot; the structure does not need to be under loads; the technique is very robust, damage detectability is high, but it requires sensors to be located very close to the damage, so it is a local technique. The second approach offers a wider coverage of the structure; it is based on identifying the changes caused by the damage on the global strains field in the whole structure for similar external loads. Damage may happen anywhere in the structure, detectability is dependent upon the sensors network density, damage size and the external loads. Examples of application to real structures are given.

    Idioma originalInglés
    Título de la publicación alojadaStructural Health Monitoring 2017
    Subtítulo de la publicación alojadaReal-Time Material State Awareness and Data-Driven Safety Assurance - Proceedings of the 11th International Workshop on Structural Health Monitoring, IWSHM 2017
    EditoresFu-Kuo Chang, Fotis Kopsaftopoulos
    EditorialDEStech Publications
    Páginas1477-1487
    Número de páginas11
    ISBN (versión digital)9781605953304
    EstadoPublicada - 2017
    Evento11th International Workshop on Structural Health Monitoring 2017: Real-Time Material State Awareness and Data-Driven Safety Assurance, IWSHM 2017 - Stanford, Estados Unidos
    Duración: 12 sept. 201714 sept. 2017

    Serie de la publicación

    NombreStructural Health Monitoring 2017: Real-Time Material State Awareness and Data-Driven Safety Assurance - Proceedings of the 11th International Workshop on Structural Health Monitoring, IWSHM 2017
    Volumen1

    Conferencia

    Conferencia11th International Workshop on Structural Health Monitoring 2017: Real-Time Material State Awareness and Data-Driven Safety Assurance, IWSHM 2017
    País/TerritorioEstados Unidos
    CiudadStanford
    Período12/09/1714/09/17

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