전자스패클패턴 간섭시스템을 이용한 피로하중을 받는 균열선단에서 탄소성 영역 측정에 관한 연구

The magnitude of the plastic zone around the crack tip of DENT(Double Edge Notched Tension) specimen and the crack growth length under cyclic loading were measured by ESPI(Electronic Speckle Pattern Interferometry) system. The measured magnitude of plastic zone was compared with the equations propos...

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Bibliographic Details
Published inHan-guk haeyang gonghak hoeji (Online) Vol. 16; no. 4; pp. 13 - 18
Main Authors 김경수(KYUNG-SU KIM), 심천식(CHUN-SIK SHIM)
Format Journal Article
LanguageKorean
Published 한국해양공학회 2002
Subjects
해양공학
Plastic Zone Size 소성영역크기
ESPI System 전자스패클패턴 간섭시스템
Elastic-Plastic Zone 탄소성 영역
Fatigue Crack Growth Length 피로균열성장 길이
Online AccessGet full text
ISSN1225-0767
2287-6715

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Summary:The magnitude of the plastic zone around the crack tip of DENT(Double Edge Notched Tension) specimen and the crack growth length under cyclic loading were measured by ESPI(Electronic Speckle Pattern Interferometry) system. The measured magnitude of plastic zone was compared with the equations proposed by Irwin and calculated by a nonlinear static method of MSC/NASTRAN. The measured crack growth length by ESPI system was also compared with the obtained data by the image analysis system. From the study, it is confirmed that the plastic zone and crack growth length can be measured accurately with the high-tech equipment.
Bibliography:KISTI1.1003/JNL.JAKO200211921174081
http://www.metric.or.kr/info/scholar/content.asp?p_id=32957&s_code=JP
G704-000698.2002.16.4.005
ISSN:1225-0767
2287-6715