Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지
DOI QR코드

DOI QR Code

Study on the Development of the Digital Image Correlation Measurements Program for Measuring the 3-Point Bending Test

이미지 상관법을 이용한 3 점 굽힘 시험 계측 프로그램 개발 관한 연구

  • Choi, In Young (Department of Mechanical Design, Graduate School of Chonbuk National University) ;
  • Kang, Young June (Department of Mechanical Design Engineering, Chonbuk National University) ;
  • Hong, Kyung Min (Department of Mechanical Design, Graduate School of Chonbuk National University) ;
  • Ko, Kwang Su (Department of Mechanical Design, Graduate School of Chonbuk National University) ;
  • Kim, Sung Jong (Department of Business Incubator Center, Chonbuk National University)
  • Received : 2014.03.27
  • Accepted : 2014.07.23
  • Published : 2014.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Machine parts and structures of a change in the displacement and strain can be evaluated safety is one of the important factors. Typically the strain gauge has been employed to measure the displacement and strain. However, this contact-type measurement method has disadvantages that are not measured under condition of specific object shape, surface roughness and temperature. In particularly, 3 point bending and 4 point bending test not use strain gauge. So its test used cross head displacement and deflect meter. Digital Image Correlation measurement methods have many advantages. It is non contact-type measurement method to measure the object displacements and strain. In addition, it is possible to measure the Map of full field displacements and strain. In this paper, measured the 3 point bending deflection using the Digital Image Correlation methods. In order to secure the reliability, Digital Image Correlation method and universal test machine were compared.

Keywords

References

  1. Pan, B., Qian, K., Xie, H., and Asundi, A., "Two-Dimensional Digital Image Correlation for in-Plane Displacement and Strain Measurement: a review," Measurement Science and Technology, Vol. 20, No. 6, pp. 1-17, 2009.
  2. Pan, B., Dafang, W., and Yong, X. "Incremental Calculation for Large Deformation Measurement using Reliability-Guided Digital Image Correlation," Optics and Lasers in Engineering, Vol. 50, No. 4, pp. 586-592, 2012. https://doi.org/10.1016/j.optlaseng.2011.05.005
  3. Shi, H., Ji, H., Yang, G., and He, X., "Shape and Deformation Measurement System by Combining Fringe Projection and Digital Image Correlation," Optics and Laser in Engineering, Vol. 51, No. 1, pp. 47-53, 2013.
  4. Helm, J. D., "Digital Image Correlation for Specimens with Multiple Growing Creaks," Experimental Mechanics, Vol. 48, No. 6, pp. 753-762, 2008. https://doi.org/10.1007/s11340-007-9120-2
  5. Pan, B., Wu, D., and Xia, Y., "An Active Imaging Digital Image Correlation Method for Deformation Measurement Insensitive to Ambient Light," Optics & Laser Technology, Vol. 44, No. 1, pp. 204-209, 2012. https://doi.org/10.1016/j.optlastec.2011.06.019
  6. Oh, H. K., Kim, S. T., and Kang, J. W., "A Study of the Strain Measurement for Al 6061-T6 Tensile Specimen using the Digital Image Correlation," Journal of the Korean Society of Safety, Vol. 28, No. 4, pp. 26-32, 2013. https://doi.org/10.14346/JKOSOS.2013.28.4.026
  7. Corr, D., Accardi, M., Graham-Brady, L., and Shah, S., "Digital Image Correlation Analysis of Interfacial Debonding Properties and Fracture Behavior in Concrete," Engineering Fracture Mechanics, Vol. 74, No. 1, pp. 109-121, 2007. https://doi.org/10.1016/j.engfracmech.2006.01.035