KCI Concrete Journal

Korea Concrete Institute (한국콘크리트학회)
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Prediction of Fracture Energy of Concrete

  • Published : 1999.07.01
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Abstract

A method to determine the fracture energy of concrete is investigated. The fracture energy may be calculated from the area under the complete load-deflection curve which can be obtained from a stable three-point bend test. Several series of concrete beams have been tested. The Present experimental study indicates that the fracture energy decreases as the initial notch-to-beam depth ratio increases Some problems to be observed to employ the three-point bend method are discussed. The appropriate ratio of initial notch-to-beam depth to determine the fracture energy of concrete is found to be 0.5. It is also found that the influence of the self-weight of a beam to the fracture energy is very small A simple and accurate formula to predict the fracture energy of concrete is proposed.

Keywords

References

  1. ACI 318-83 Building Code Requirements for Reinforced Concrete American Concrete Institute
  2. Proceedings, 4th International Conference on Numerical Methods in Geomechanics, v.3 Crack Band Model for Fracture of Geomaterials Bazant, Z.P.;Z. Eisenstein(ed.)
  3. Journal of Engineering Mechanics v.110 no.4 Size Effect in Blunt Fracture: Concrete. Rock. Metal Bazant, Z.P.
  4. Journal of Structural Engineering v.110 no.6 Approximate Linear Analysis of Concrete Fracture by R-curves Bazant, Z.P.;Cedolin, L.
  5. Journal of the Engineering Mechanics Division v.105 no.EM2 Blunt Crack Band Propagation in Finite Element Analysis Bazant, Z.P.;Cedolin, L.
  6. Crack Band Theory for Fracture of Concrete, Materials and Structures v.16 Bazant, Z.P.;Oh B.H.
  7. Journal of Engineering Mechanics v.110 no.7 Rock Fracture via Strain-Softening Finite Elements Bazant, Z.P.;Oh, B.H.
  8. Elementary Engineering Fracture Mechanics Broek, D
  9. Magazine of Concrete Research v.24 no.81 Measuring the Fracture Toughness of Cement Paste and Mortar Brown, J.H.
  10. Report, Istituto di Scienza delle costruzioni - Inegegneria Static and Energetic Fracture Parameters for Rocks and Concretes Carpinteri, A.
  11. Journal of Engineering Mechanics v.110 no.8 Fracture Process Zone of Concrete Cracks Cho, K.Z.;Kobayashi, A.S.;Hawkins, N.M.;Barker, D.B.;Jeang, F.L.
  12. Experimental Investigation of Laws Govering Quasi-Static Development of Microcracks in Concrete (Translation from Russian) v.10 no.4 Entov, V.M.;Yangust, V.I.
  13. Cement and Concrete Research v.7 Notch Sensitivity and Fracture Toughness of Concrete Gj${\phi}$rv, O.E.;S${\phi}$renson, S.I.;Arnesen, A.
  14. Journal of the American Concrete Institute Softening Response of Plain Concrete in Direct Tension Gopalaratnam, V.S.;Shah, S.P.
  15. thesis presented to the Kansas State University, at Kansas, In 1981;partial fulfillment of the requirements for the degree of Doctor of Philosophy Finite Element and Experimental Studies of Stress Intensity Factors for Concrete Beams Huang, C.M.J.
  16. ASTM- STP 668 Stability Analysis of J-Controlled Crack Growth; Elastic-Plastic Fracture Hutchinson, J. W.;Paris, P. C.
  17. American Concrete Institute Journal v.58 no.11 Crack Propagation and the Fracture of Concrete Kaplan, M.F.
  18. Fundamentals of Fracture Mechanics Knott, J.F.
  19. Journal of the American Ceramic Society v.57 no.2 Slow Crack Growth in Cement Paste W Nadeau, J.S.;Mindess, S.;Hay, J.M.
  20. ASTM Special Techinical Publication, No. 668 and 677 The Theory of Tearing Instability of the Tearing Mode of Elastic-Plastic Crack Growth Paris, P.C.(et al.)
  21. The Mechanics of Fracture and Fatigue Parker, A.P.
  22. Cement and Concrete Research v.10 Fracture Energy of Concrere: Method of Determination;Fracture Energy of Concrete: Practical Performance and Experimental Results Pertersson, P.E.
  23. Journal of the American Concrete Institute Tensile Strength of Concrete Raphael, J.M.
  24. Journal of the Engineering Mechanics Division;Proc. Paper 8597 v.97 no.EM6 Griffith Fracture Criterion and Con~rete Shah, S.P.;McGarry, F.J.
  25. Cement and Concrete Research v.9 Mecanique de la Rupture Appliquee au Beton Hydraulique Sok, C.;Baron, J.
  26. The Stress Analysis of Cracks Handbook Tada, H.;Paris, P.C.;Irwin, G.R.
  27. Journal of the American Concrete Institute Fracture Model for Fiber Reinforced Concrete Visalvanich, K.;Naaman, A.E.
  28. The Indian Concrete Journal v.46 no.11 Fracture of Plain Concrete Walsh, P.F.
  29. Journal of Structural Engineering Division v.108 no.ST6 Slow Crack Growth in Cement Composites Wecharatana, M.;Shah, S.P.
  30. Journal of Engineering Mechanics v.109 no.5 Predictions of Nonlinear Fracture Process Zone in Concrete Wecharatana, M.;Shah, S.P.
  31. Fracture Mechanics of Concrete Wittmann, F.H.