Health Monitoring for Civil Structures by Means of Acoustic Emission
スポンサーリンク
概要
- 論文の詳細を見る
Civil structures have been deteriorated due to aging or strong ground motions of earthquakes. For the investigation of damage in concrete structures, for example, visual observation would be primarily performed. When performing the details investigation for superstructures, such positive inspection techniques as ultrasonic test, impact echo test and infrared-red radiation test are carried out followed by visual observation, while for substructures, such investigation is generally not applied since their difficulties in applications for experimental cases. Acoustic emission (AE) is a non-destructive technique based on the elastic waves generated due to cracking within materials. The AE technique is applicable for not only to know source identification of defects but to quantify the damage degree. In the present paper, two applications of AE technique for railway structures and rock slope stability are introduced. In both applications, successful ideas to quantify damage are briefly demonstrated.
- 一般社団法人日本機械学会の論文
- 2004-03-03