취성재료의 파괴과정에서 A.E.에 의한 파괴원 위치 결정에 관한 연구

• 영문명: A study on the determination of source location in the failure for brittle material
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 안병국(Ahn Byung Kook) 임한욱(Lim Han Uk) 이상은(Lee Sang Eun)
• 간행물 정보: 『산업기술연구』vol.19, 1~12쪽, 전체 12쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 1999.09.30

영문 초록

The process of localization of cracks and movement of the fracture process zone(FPZ) was studied using the acoustic-emission(AE) techniques. The rate of AE events and sources of AE activity were studied for mortar and rock specimens loaded in uniaxial compression. A series of transducers could be used to detect and AE activity. Based on the time differences between detection of the event at different transducers, source of AE activity could be detected. The rate of AE events increased sharply before peak load. The highest rate occurred just after peak load was attained. The effective crack length estimated from the modified linear-elastic fracture mechanics seemed consistent with the optical and AE measurements.

목차

Abstract

1. 서론

2. 이론적 고찰

3. 실험장치 및 방법

4. 실험 결과 및 해석

5. 결론

참고문헌

키워드

미소음방출 파괴진행영역 균열의 진전 A.E.사상계수 Acoustic-emission Fracture process zone Progress of cracks A.E events