THE USE OF MOIRE FRINGES FOR CONCRETE STRAIN ANALYSIS

THE GENERAL RELATIONSHIPS BETWEEN MOIRE FRINGE SPACINGS AND ROTATIONS AND STRAINS ARE DEVELOPED IN THE INITIAL PART OF THE REPORT. THE APPLICATION OF THIS TECHNIQUE TO CONCRETE BEAM SPECIMENS NEAR REGIONS OF PROBABLE SHEAR-DIAGONAL TENSION CRACKS IS DESCRIBED. THE SENSITIVITY AND ACCURACY OF THE METHOD IS DESCRIBED IN SOME DETAIL. SOME CONCLUSIONS BASED ON THE RESULTS WERE AS FOLLOWS' /1/ THE MOIRE METHOD DOES HAVE A DEFINITE APPLICATION TO CONCRETE, BUT SPECIAL PRECAUTIONS HAVE TO BE TAKEN TO OBTAIN A GOOD BOND FOR THE GRID, /2/ THE ACCURACY OF THE METHOD APPEARS TO BE EQUAL TO PHOTOELASTIC METHODS, AND /3/ QUANTITATIVE MEASUREMENTS AND SENSITIVITY OF THE MOIRE METHOD MAY BE IMPROVED IF FINER GRID SPACINGS ARE USED. /BPR/

  • Supplemental Notes:
    • Hpr - 1/1/, DR -6403
  • Corporate Authors:

    University of Florida, Gainesville

    Gainesville, FL  United States  32611

    Florida State Road Department

    ,    
  • Authors:
    • Cassaro, M A
    • Csercsics, J
  • Publication Date: 1967-3

Subject/Index Terms

Filing Info

  • Accession Number: 00212011
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Aug 30 1994 12:00AM