Application of three-dimensional digital image correlation to the core-drilling method

McGinnis M., Pessiki S., TÜRKER H. T.

EXPERIMENTAL MECHANICS, vol.45, no.4, pp.359-367, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 4
  • Publication Date: 2005
  • Doi Number: 10.1177/0014485105055435
  • Journal Name: EXPERIMENTAL MECHANICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.359-367
  • Bursa Uludag University Affiliated: No

Abstract

We present a non-destructive technique for the determination of in situ stresses in concrete structures, referred to as the core-drilling method. The method is similar to the American Society for Testing and Materials (ASTM) hole-drilling strain gage method, except that the core-drilling method is formulated in terms of displacement rather than strain. Measurements in the current work are performed with traditional photogrammetry, and the more novel (and more accurate) three-dimensional digital image correlation. In this paper we review the background elasticity theory and we discuss the results of verification experiments on steel plates. Calculated normal stresses are within 17% of applied values for photogrammetry, and 7% for three-dimensional digital image correlation.