AN EXPERIMENTAL INVESTAGATION OF THE STRAIN DISTRIBUTION IN THE SPLIT CYLINDER TEST

THE SPLIT CYLINDER TEST, ASTM METHOD C 496, IS COMMONLY USED TO DETERMINE THE TENSILE STRENGTH OF CONCRETE. IN THIS TEST, THE TENSILE STRESS AT RUPTURE IS CALCULATED FROM THE APPLIED LOAD BY A SIMPLE FORMULA BASED ON THE THEORY OF ELASTICITY. IT IS, HOWEVER, KNOWN THAT CONCRETE IS NOT REALLY AN ELASTIC MATERIAL, TO INVESTIGATE THE EFFECT OF THE NONLINEARITY OF THE MATERIAL, CYLINDERS MADE OF A DUCTILE PLASTIC WERE INSTRUMENTED WITH STRAIN GAGE ROSETTES AND LOADED IN THE MANNER PRESCRIBED FOR SPLIT CYLINDER TESTS. STRAINS WERE RECORDED AT MANY LOAD LEVELS AND PRINCIPAL STRAINS CALCULATED. WHEN THE APPLIED LOADS BECAME LARGE ENOUGH SO THAT THE LINEAR RANGE OF BEHAVIOR OF THE MATERIAL WAS EXCEEDED, AGREEMENT BETWEEN THEORY AND TEST RESULTS BECAME QUITE POOR. A FAIR AMOUNT OF STRAIN AND LOAD REDISTRIBUTION TOOK PLACE, CALLING INTO QUESTION THE ACCURACY OF THIS TYPE OF TEST FOR MATERIALS, SUCH AS CONCRETE, WHICH EXHIBIT NONLINEAR BEHAVIOR PRIOR TO FAILURE, WHEN THE INTERPRETATIVE FORMULAS ARE BASED ON LINEAR THEORY. THE MAGNITUDE OF THE ERROR INVOLVED IS GRAPHICALLY PRESENTED IN THE PAPER. /JM/

• Supplemental Notes:
  • Vol 2, No 4, PP 703-718, 11 FIG, 16 REF
• Authors:
  • Seefried, K J
  • Gesund, H
  • Pincus, G
• Publication Date: 1967-12

Media Info

• Serial:
  • Journal of Materials
  • Publisher: American Society for Testing and Materials (ASTM)

Subject/Index Terms

• TRT Terms: Concrete tests; Elasticity (Mechanics); Errors; Graphics; Load transfer; Rock fracture; Strain (Mechanics); Strain gages; Tensile strength; Tension
• Uncontrolled Terms: Graphical analysis; Strain rate; Tensile stress
• Old TRIS Terms: Elastic theory
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00213222
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 9 1994 12:00AM