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

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

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.

Original language	English
Title of host publication	Structural Health Monitoring 2017
Subtitle of host publication	Real-Time Material State Awareness and Data-Driven Safety Assurance - Proceedings of the 11th International Workshop on Structural Health Monitoring, IWSHM 2017
Editors	Fu-Kuo Chang, Fotis Kopsaftopoulos
Publisher	DEStech Publications
Pages	1477-1487
Number of pages	11
ISBN (Electronic)	9781605953304
State	Published - 2017
Event	11th International Workshop on Structural Health Monitoring 2017: Real-Time Material State Awareness and Data-Driven Safety Assurance, IWSHM 2017 - Stanford, United States Duration: 12 Sep 2017 → 14 Sep 2017

Publication series

Name	Structural 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
Volume	1

Conference

Conference	11th International Workshop on Structural Health Monitoring 2017: Real-Time Material State Awareness and Data-Driven Safety Assurance, IWSHM 2017
Country/Territory	United States
City	Stanford
Period	12/09/17 → 14/09/17

Bibliographical note

Funding Information:
This work was partially supported by the Spanish Ministry and competitiveness (grant number TRA2014-58263-C2-2-R)

Cite this

Güemes, A., Fernández-López, A., Díaz-Maroto, P. F., Lozano, Á., & Sierra-Perez, J. (2017). Local and global approaches for damage detection in composite structures by fiber optic sensors. In F-K. Chang, & F. Kopsaftopoulos (Eds.), Structural 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 (pp. 1477-1487). (Structural 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; Vol. 1). DEStech Publications.

Güemes, Alfredo ; Fernández-López, Antonio ; Díaz-Maroto, Patricia F. et al. / Local and global approaches for damage detection in composite structures by fiber optic sensors. Structural 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. editor / Fu-Kuo Chang ; Fotis Kopsaftopoulos. DEStech Publications, 2017. pp. 1477-1487 (Structural 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).

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title = "Local and global approaches for damage detection in composite structures by fiber optic sensors",

abstract = "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.",

author = "Alfredo G{\"u}emes and Antonio Fern{\'a}ndez-L{\'o}pez and D{\'i}az-Maroto, {Patricia F.} and {\'A}ngel Lozano and Juli{\'a}n Sierra-Perez",

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Güemes, A, Fernández-López, A, Díaz-Maroto, PF, Lozano, Á & Sierra-Perez, J 2017, Local and global approaches for damage detection in composite structures by fiber optic sensors. in F-K Chang & F Kopsaftopoulos (eds), Structural 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. Structural 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, vol. 1, DEStech Publications, pp. 1477-1487, 11th International Workshop on Structural Health Monitoring 2017: Real-Time Material State Awareness and Data-Driven Safety Assurance, IWSHM 2017, Stanford, United States, 12/09/17.

Local and global approaches for damage detection in composite structures by fiber optic sensors. / Güemes, Alfredo; Fernández-López, Antonio; Díaz-Maroto, Patricia F. et al.

Structural 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. ed. / Fu-Kuo Chang; Fotis Kopsaftopoulos. DEStech Publications, 2017. p. 1477-1487 (Structural 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; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Güemes, Alfredo

AU - Fernández-López, Antonio

AU - Díaz-Maroto, Patricia F.

AU - Lozano, Ángel

AU - Sierra-Perez, Julián

N1 - Funding Information: This work was partially supported by the Spanish Ministry and competitiveness (grant number TRA2014-58263-C2-2-R)

PY - 2017

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AB - 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.

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Güemes A, Fernández-López A, Díaz-Maroto PF, Lozano Á, Sierra-Perez J. Local and global approaches for damage detection in composite structures by fiber optic sensors. In Chang F-K, Kopsaftopoulos F, editors, Structural 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. DEStech Publications. 2017. p. 1477-1487. (Structural 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).

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

Abstract

Publication series

Conference

Bibliographical note

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