Advanced Ultrasonic Techniques for Railroad Inspections: Determining the Structural Integrity of Rail Steel - Couverture souple

Kenderian, Shant

 
9783639093735: Advanced Ultrasonic Techniques for Railroad Inspections: Determining the Structural Integrity of Rail Steel
Couverture souple
ISBN 10 : 3639093739 ISBN 13 : 9783639093735
Editeur : VDM Verlag Dr. Müller, 2008

Synopsis

Laser generated ultrasound and air-coupled ultrasonicdetectors are used to develop an inspection techniquefor the railroad industry. The Laser Air HybridUltrasonic Technique (LAHUT) has the advantage ofperforming inspections without establishing contactwith or the need to come close to the inspectedstructures. This feature makes it possible to performdynamic inspections of tracks from a moving train andstationary wayside inspection of wheels on a passingtrain. The study considers the most critical flawtypes in railroad tracks and wheels. Some are verydifficult to detect with currently availabletechnology, others are not possible without ahandheld device. The second part of the book uses acontact ultrasonic method to monitor microstructuraleffects during fatigue cycling of railroad steel. Twoexperiments configurations are presented. One is verysensitive to microcracks. Once detected, theremainder fatigue life may be predicted. The secondtechnique is sensitive to dislocations on an atomiclevel. As dislocation loop length and density beginsto multiple, certain changes are detected in thevelocity and attenuation of the acoustic signal.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Laser generated ultrasound and air-coupled ultrasonicdetectors are used to develop an inspection techniquefor the railroad industry. The Laser Air HybridUltrasonic Technique (LAHUT) has the advantage ofperforming inspections without establishing contactwith or the need to come close to the inspectedstructures. This feature makes it possible to performdynamic inspections of tracks from a moving train andstationary wayside inspection of wheels on a passingtrain. The study considers the most critical flawtypes in railroad tracks and wheels. Some are verydifficult to detect with currently availabletechnology, others are not possible without ahandheld device. The second part of the book uses acontact ultrasonic method to monitor microstructuraleffects during fatigue cycling of railroad steel. Twoexperiments configurations are presented. One is verysensitive to microcracks. Once detected, theremainder fatigue life may be predicted. The secondtechnique is sensitive to dislocations on an atomiclevel. As dislocation loop length and density beginsto multiple, certain changes are detected in thevelocity and attenuation of the acoustic signal.

Biographie de l'auteur

Shant Kenderian obtained his BS degree in Production Engineeringand Metallurgy from the University of Technology in Baghdad in1985; MS degree in Manufacturing Engineering and Technology fromCal. State LA in 1996, MS and PhD degrees in Materials Scienceand Engineering from The Johns Hopkins University in 2002.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2008
Langue
anglais
ISBN 10 
3639093739
ISBN 13 
9783639093735
Reliure
Broché
Nombre de pages
156
Coordonnées du fabricant
non disponible
Personne responsable
non disponible