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Acoustic Emission Detection and Monitoring of Highway Bridge Components. Final Report

D. W. Vannoy / M. Azmi

Fatigue cracking is the most common problem in steel highway bridges. Early detection of cracks requires simple, inexpensive repairs, whereas late detection of cracks may cause catastrophic accidents. Currently, the bridges are inspected by visual examination, dye penetrant, magnetic particles, ultrasonics, and radiography. Low reliability and high inspection costs requires a more efficient inspection system to be developed. Acoustic emission (AE) seems to be the solution to these problems. It has developed over the past two decades as a nondestructive testing technique with high sensitivity to detect progressive microscopic events in the material. Development of portable AE equipment has made it an even more practical method for bridge inspections. A model for predicting the stage of crack growth versus AE parameters has has been discussed, and a systematic inspection procedure by AE has been recommended.

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Acoustic Emission Detection and Monitoring of Highway Bridge Components. Final Report

D. W. Vannoy / M. Azmi

Fatigue cracking is the most common problem in steel highway bridges. Early detection of cracks requires simple, inexpensive repairs, whereas late detection of cracks may cause catastrophic accidents. Currently, the bridges are inspected by visual examination, dye penetrant, magnetic particles, ultrasonics, and radiography. Low reliability and high inspection costs requires a more efficient inspection system to be developed. Acoustic emission (AE) seems to be the solution to these problems. It has developed over the past two decades as a nondestructive testing technique with high sensitivity to detect progressive microscopic events in the material. Development of portable AE equipment has made it an even more practical method for bridge inspections. A model for predicting the stage of crack growth versus AE parameters has has been discussed, and a systematic inspection procedure by AE has been recommended.

Acoustic Emission Detection and Monitoring of Highway Bridge Components. Final Report

D. W. Vannoy / M. Azmi

Fatigue cracking is the most common problem in steel highway bridges. Early detection of cracks requires simple, inexpensive repairs, whereas late detection of cracks may cause catastrophic accidents. Currently, the bridges are inspected by visual examination, dye penetrant, magnetic particles, ultrasonics, and radiography. Low reliability and high inspection costs requires a more efficient inspection system to be developed. Acoustic emission (AE) seems to be the solution to these problems. It has developed over the past two decades as a nondestructive testing technique with high sensitivity to detect progressive microscopic events in the material. Development of portable AE equipment has made it an even more practical method for bridge inspections. A model for predicting the stage of crack growth versus AE parameters has has been discussed, and a systematic inspection procedure by AE has been recommended.

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Titel:

Acoustic Emission Detection and Monitoring of Highway Bridge Components. Final Report

Beteiligte:

D. W. Vannoy (Autor:in) / M. Azmi (Autor:in)

Erscheinungsdatum:

1991

Format / Umfang:

256 pages

Medientyp:

Report

Format:

Keine Angabe

Sprache:

Englisch

Schlagwörter:

Highway Engineering , Nondestructive Testing , Acoustic detection , Bridge inspection , Highway bridges , Nondestructive tests , Cracking(Fracturing) , Bridge maintenance , Highway maintenance , Acoustic measurement , Fatigue(Materials) , Beams(Supports) , Cracks

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