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http://dx.doi.org/10.12989/sem.2003.15.3.367

A study on the measurement of plastic zone and crack growth length at the crack tip under cyclic loading using ESPI system  

Kim, Kyung-Su (Department of Naval Architecture and Ocean Engineering, Inha University)
Kim, Ki-Sung (Department of Naval Architecture and Ocean Engineering, Inha University)
Shim, Chun-Sik (Department of Naval Architecture and Ocean Engineering, Inha University)
Publication Information
Structural Engineering and Mechanics / v.15, no.3, 2003 , pp. 367-378 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 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 (ESPI System).
Keywords
electronic speckle pattern interferometry system; plastic zone size; strain distribution; crack growth length; crack growth rate;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 4  (Related Records In Web of Science)
Times Cited By SCOPUS : 5
연도 인용수 순위
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