Micromechanics of Fiber Reinforced Cementitious Composites

  1. Prof. F. H. Wittmann
  1. B L Karihaloo1 and
  2. J Wang2

Published Online: 23 DEC 2005

DOI: 10.1002/3527606211.ch14

Materials for Buildings and Structures, Volume 6

Materials for Buildings and Structures, Volume 6

How to Cite

Karihaloo, B. L. and Wang, J. (2000) Micromechanics of Fiber Reinforced Cementitious Composites, in Materials for Buildings and Structures, Volume 6 (ed F. H. Wittmann), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606211.ch14

Editor Information

  1. ETH Zürich, Institut für Baustoffe, Werkstoffchemie und Korrosion, ETH Hönggerberg, HIF E12, 8093 Zürich, Switzerland

Author Information

  1. 1

    Cardiff School of Engineering, University of Wales Cardiff, Queen's Buildings, P. O. Box 686, Cardiff CF2 3TB, UK

  2. 2

    Department of Mechanics and Engineering Science, Peking University, Beijing 100871, P. R. China

Publication History

  1. Published Online: 23 DEC 2005
  2. Published Print: 20 APR 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301256

Online ISBN: 9783527606214



  • fracture mechanics of cement-based materials;
  • fiber reinforced cementitious composites;
  • micromechanics


The strain hardening and tension softening responses of short fiber-reinforced cementitious composites under undirectional tension/flexural loading is modelled using concepts from fracture and damage mechanics. The tensile strain hardening in these composites is due to the formation of microcracks which are however prevented from coalescing by the bridging action of the fibers. The density of microcracks increases with the increasing tensile/flexural loading until it reaches a saturation level at the tensile load carrying capacity of the composite. Thereafter the fibers progressively debond from the elastic matrix and the deformation begins to localise in the eventual fracture plane, first as unconnected cracks and later as a connected through crack subjected to the residual frictional bridging action by the fibers.