Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Study on the Development of the Displacement and Strain Distribution Measurement Algorithm to the Open Hole Tension Test by Using the Digital Image Correlation

이미지 상관법을 이용한 원공 인장 시편 변위 및 변형율 측정을 위한 알고리즘 개발에 관한 연구

  • Choi, In Young (Department of Mechanical Design Engineering, Chonbuk National University) ;
  • Kang, Young June (Eco-Friendly Machine Parts Design Research Center, Chonbuk National University) ;
  • Hong, Kyung Min (Department of Mechanical Design Engineering, Chonbuk National University) ;
  • Lee, Hak Seong (Department of Mechanical Design Engineering, Chonbuk National University) ;
  • Kim, Seong Jong (Department of Business Incubator Center, Chonbuk National University)
  • 최인영 (전북대학교 기계설계학과) ;
  • 강영준 (전북대학교 친환경부품센터) ;
  • 홍경민 (전북대학교 기계설계학과) ;
  • 이학성 (전북대학교 기계설계학과) ;
  • 김성종 (전북대학교 창업보육센터)
  • Received : 2015.04.24
  • Accepted : 2015.10.29
  • Published : 2016.02.01
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Abstract

The mechanical jointing method is very important in the machine parts and structure. They are used by the bolts and rivet because it is very convenient to replace the parts and the structure. However, the mechanical jointing methods using the bolt and rivet needed the open hole. The machine parts life cycle is reduced because this open hole created the stress concentration. Therefore, the measurement methods are needed to evaluate phenomenon of the stress concentration. This paper discusses the development of the measurement algorithm using the digital image correlation methods to measure the strain distribution of the open hole. To implement the measurement algorithm using the DIC, the LabVIEW 2010 programming tool was used. To measure the strain distribution of the open hole, the tensile specimens having an open hole are made by using the aluminum 6061-T6. To secure the reliability of measurement result using the DIC, the DIC measurement results and FEM analysis results were compared.

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References

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