지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
In order to secure the safety of various machinery, it is very important to develop a technique for accurately and quickly measuring the cracks generated in the mechanical equipment and evaluating the mechanical characteristics. The evaluation of the mechanical properties is accompanied by an appropriate strain measurement according to the material and crack occurrence of the target structure. Especially, when micro cracks are generated, the evaluation method is very important. Digital image correlation is an optical full field displacement measuring method which is using currently with speckles in the interested area. However the evaluation method and conditions of image distributions have to be considered carefully to measure the crack occurrence because the images of the speckle patterns affect the quality of displacement results. In this study, the speckle pattern density is characterized to improve the accuracy of the measurement method. And also the micro crack initiation is detected by the measured displacement in the adopted speckle pattern distribution. It is shown that the proposed method is useful to determine the density pattern distribution for the accurate measurement and crack detection.
목차
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참고문헌 (19)
참고문헌 신청
강지웅 / 2014 / SENT시험편을 이용한 CFRP/GFRP 하이브리드 적층재의 노치선단부 변형률 평가 / 한국안전학회지 29(5):15~21
A. S. Khan / 2001 / Strain Measurement and Stress Analysis / Prentice Hall
M. A. Sutton / 1983 / Determination of Displacements using an Improved Digital Correlation Method / Image Vision Computer 1(13):133~139
M. A. Sutton / 2008 / The Effect of Out-of Plane Motion on 2D and 3D Digital Image Correlation Measurement / Optics and Lasers in Engineering 46:746~757
M. Dekiff / 2010 / Three Dimensional Data Acquisition by Digital Correlation of Projected Speckle Patterns / Applied Physics B 99:449~456
A. S. Khan / 2001 / Strain Measurement and Stress Analysis / Prentice Hall
M. A. Sutton / 1983 / Determination of Displacements using an Improved Digital Correlation Method / Image Vision Computer 1(13):133~139
M. A. Sutton / 2008 / The Effect of Out-of Plane Motion on 2D and 3D Digital Image Correlation Measurement / Optics and Lasers in Engineering 46:746~757
M. Dekiff / 2010 / Three Dimensional Data Acquisition by Digital Correlation of Projected Speckle Patterns / Applied Physics B 99:449~456
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