KOREASCHOLAR

패턴인식을 이용한 고장력강의 용접 구조건전성 평가에 대한 음향방출 사례연구 Acoustic Emission Studies on the Structural Integrity Test of Welded High Strength Steel using Pattern Recognition

김길동, 이장규
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  • URLhttp://db.koreascholar.com/Article/Detail/368975
대한안전경영과학회 학술대회
2008년도 대한안전경영과학회 춘계학술대회 (2008.04)
pp.185-196
대한안전경영과학회 (Korea Safety Management & Science)
초록

The objective of this study is to evaluate the mechanical behaviors and structural integrity of the weldment of high strength steel by using an acoustic emission (AE) techniques. Simple tension and AE tests were conducted against the 3 kind of welding test specimens. In order to analysis the effectiveness of weldability, joinability and structural integrity, we used K-means clustering method as a unsupervised learning pattern recognition algorithm for obtained multivariate AE main data sets, such as AE counts, energy, amplitude, hits, risetime, duration, counts to peak and rms signals. Through the experimental results, the effectiveness of the proposed method is discussed.

키워드
Acoustic Emission(AE)Tensile TestingStructural IntegrityPattern RecognitionK-meansClusteringUnsupervised learning
목차
Abstract
 1. 서론
 2. 관련 이론
  2.1 음향방출(acoustic emission)
  2.2 패턴인식(pattern recognition)
 3. 실험재료 및 실험방법
  3.1 실험재료 및 시험편
  3.2 실험방법
 4. 실험결과 및 고찰
 5. 결론
 6. 참고문헌
저자
  • 이장규 | Rhee Zhang-Kyu
  • 김길동 | Kim Gil-Dong