EFFECT OF FIBER STRENGTH AND FIBER-MATRIX INTERFACE ON CRACK BRIDGING IN CEMENT COMPOSITES

This article proposes a new theory for predicting the crack-bridging performance of random short fibers involved in cementitious composites. The current theoretical model for estimating crack bridging performance of random short fiber reinforced cement composites under tension is limited to specific constituent properties: friction-dominant fiber-matrix interface and complete fiber pullout from matrix without rupture. The new theory extends this model by accounting for two often-encountered features in practice: fiber strength reduction and rupture in composites, and chemical bond-dominant fiber-matrix interface. The new theory was verified to capture important characteristics in bridging performance in comparison with composite tensile test data. As a result, the new theory forms an important foundation for developing high-performance random short fiber reinforced cement composites.

  • Availability:
  • Supplemental Notes:
    • Part of this research was supported by a grant (CMS-EQ-9601262) from the National Science Foundation to the University of Michigan at Ann Arbor.
  • Corporate Authors:

    American Society of Civil Engineers

    1801 Alexander Bell Drive
    Reston, VA  United States  20191-4400
  • Authors:
    • Kanda, T
    • Li, V C
  • Publication Date: 1999-3

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00762775
  • Record Type: Publication
  • Contract Numbers: CMS-EQ-9601262, CMS-9713944
  • Files: TRIS
  • Created Date: Apr 16 1999 12:00AM