POSTCRACK SCALING RELATIONS FOR FIBER REINFORCED CEMENTITIOUS COMPOSITES

A theoretical study is presented of the complete bridging stress-displacement curve of randomly distributed discontinuous fiber reinforced cementitious composites. By adopting some simplifying assumptions, closed-form analytic solutions are derived based on which the scaling laws of the bridging stress-displacement curve and composite fracture energy are examined with respect to fiber, matrix, and fiber/matrix interaction properties. Comparisons with experimental data of the postpeak stress-displacement curves and with composite fracture energy for steel FRCC (fiber reinforced cementitious composites) are also given. Recent data on a polymeric FRCC are also shown to be well described by the same scaling laws proposed here.

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  • Accession Number: 00618939
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 29 1992 12:00AM