EFFECTIVE ELASTIC PROPERTIES OF FIBER-REINFORCED CONCRETE WITH RANDOM FIBERS

An analytical approach is used to determine the effective elastic properties of fiber reinforced concrete with randomly oriented high modulus of elasticity fibers. The analysis is essentially the same as that of a composite system with a random orientation of fibers developed by Christensen and Waal (1972). It is first done for a system of aligned fibers and then a geometric averaging procedure is performed over all possible orientations of the fibers, assuming that the average of all responses is the actual response of the cementitious composite with a random dispersion of fibers. The effective properties of the aligned fibrous system are evaluated by two averaging schemes. Some asymptotic results for the overall isotropic effective properties of fibrous concrete are obtained and compared with experimental results and the rule of mixtures, which is used for design purposes.

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  • Accession Number: 00617918
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Dec 31 1991 12:00AM