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Multimetric sensing for structural damage detection / S. H. Sim in Journal of engineering mechanics, Vol. 137 N° 1 (Janvier 2011) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 137 N° 1 (Janvier 2011) . - pp.22-23 Titre : Multimetric sensing for structural damage detection Type de document : texte imprimé Auteurs : S. H. Sim, Auteur ; B.F Spencer, Auteur ; T. Nagayama, Auteur Année de publication : 2011 Article en page(s) : pp.22-23 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Structural  reliability  Monitoring  Damage  Infrastructure. Résumé : Vibration-based damage detection methods have been widely studied for structural health monitoring of civil infrastructure. Acceleration measurements are frequently employed to extract the dynamic characteristics of the structure and locate damage because they can be obtained conveniently and possess relatively little noise. However, considering the fact that damage is a local phenomenon, the sole use of acceleration measurements that are intrinsically global structural responses limits damage detection capabilities. This paper investigates the possibility of using both global and local measurements to improve the accuracy and robustness of damage detection methods. A multimetric approach based on the damage locating vector method is proposed. Numerical simulations are conducted to verify the efficacy of the proposed approach. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i1/p22_s1?isAuthorized=no [article] Multimetric sensing for structural damage detection [texte imprimé] / S. H. Sim, Auteur ; B.F Spencer, Auteur ; T. Nagayama, Auteur . - 2011 . - pp.22-23. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 137 N° 1 (Janvier 2011) . - pp.22-23 Mots-clés : Structural  reliability  Monitoring  Damage  Infrastructure. Résumé : Vibration-based damage detection methods have been widely studied for structural health monitoring of civil infrastructure. Acceleration measurements are frequently employed to extract the dynamic characteristics of the structure and locate damage because they can be obtained conveniently and possess relatively little noise. However, considering the fact that damage is a local phenomenon, the sole use of acceleration measurements that are intrinsically global structural responses limits damage detection capabilities. This paper investigates the possibility of using both global and local measurements to improve the accuracy and robustness of damage detection methods. A multimetric approach based on the damage locating vector method is proposed. Numerical simulations are conducted to verify the efficacy of the proposed approach. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i1/p22_s1?isAuthorized=no