Browse > Article

A Study on the Measurement of Elastic-Plastic Zone at the Crack Tip under Cyclic Loading using ESPI System  

김경수 (인하대학교 선박공학과)
심천식 (인하대학교 선박공학과)
Publication Information
Journal of Ocean Engineering and Technology / v.16, no.4, 2002 , pp. 13-18 More about this Journal
Abstract
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.
Keywords
ESPI System; Elastic-Plastic Zone; Fatigue Crack Growth Length; Plastic Zone Size;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
1 표면 균열재의 피로균열관통거동에 따른 어코스틱에미션 /
[ 남기우;김선진;이건찬;오정환;오세규;이주석 ] / 한국해양공학회지   과학기술학회마을
2 Standard Test Method for Measurement of Fatigue Crack Growth Rates /
[ ASTM ] / Annual Book of ASTM Standards
3 피로균열전파저항의 변동성에 의한 균열전파율의 해석 /
[ 김선진 ] / 대한기계학회논문집
4 강재의 피로균열전파율에 미치는 시험편 크기의 영향 /
[ 김선진;안석환 ] / 한국해양공학회지   과학기술학회마을
5 알루미늄 5083의 피로균열 진전에 따른 수명예측 및 비파괴평가 /
[ 남기우 ] / 한국해양공학회지   과학기술학회마을
6 /
[ Anderson T.L. ] / Fracture Mechanics-Fundamentals and Applications
7 /
[ Dowling N.E. ] / Mechanical Behavior of Materials
8 3D-ESPI 시스템을 이용하여 결정된 응력집중계수가 피로수명에 미치는 영향에 관한 연구 /
[ 김경수;심천식 ] / 한국해양공학회지   과학기술학회마을