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Acoustic Emission Monitoring of Fatigue Cracks in Steel Bridge Girders

J. A. McKeefry / C. K. Shield

This report presents results from a laboratory study and field implementation of acoustic emission monitoring of fatigue cracks in cover-plated steel bridge girders. The acoustic monitoring successfully detected growing fatigue cracks in the lab when using both source location and a state of stress criteria. Application of this methodology on three field bridges also proved successful by detecting a propagating crack in two of the bridges and an extinguishing crack in a third bridge.

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Acoustic Emission Monitoring of Fatigue Cracks in Steel Bridge Girders

J. A. McKeefry / C. K. Shield

This report presents results from a laboratory study and field implementation of acoustic emission monitoring of fatigue cracks in cover-plated steel bridge girders. The acoustic monitoring successfully detected growing fatigue cracks in the lab when using both source location and a state of stress criteria. Application of this methodology on three field bridges also proved successful by detecting a propagating crack in two of the bridges and an extinguishing crack in a third bridge.

Acoustic Emission Monitoring of Fatigue Cracks in Steel Bridge Girders

J. A. McKeefry / C. K. Shield

This report presents results from a laboratory study and field implementation of acoustic emission monitoring of fatigue cracks in cover-plated steel bridge girders. The acoustic monitoring successfully detected growing fatigue cracks in the lab when using both source location and a state of stress criteria. Application of this methodology on three field bridges also proved successful by detecting a propagating crack in two of the bridges and an extinguishing crack in a third bridge.

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Titel:

Acoustic Emission Monitoring of Fatigue Cracks in Steel Bridge Girders

Beteiligte:

J. A. McKeefry (Autor:in) / C. K. Shield (Autor:in)

Erscheinungsdatum:

1999

Format / Umfang:

154 pages

Medientyp:

Report

Format:

Keine Angabe

Sprache:

Englisch

Schlagwörter:

Highway Engineering , Girders , Bridges(Structures) , Nondestructive tests , Retrofitting , Cracking(Fracturing) , Steel structures , Strain gages , Fatigue(Materials) , Acoustic measurement

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