Interface Debonding in Fiber Reinforced Cement-Matrix Composites

Journal Article
J., Shannag, M. . 1999
Publication Work Type: 
Research, Journal of Composite Materials
Issue Number: 
2
Volume Number: 
33
Pages: 
158-175
Publication Abstract: 

Shear lag theory was used to predict the extent of fiber debonding at the end of the elastic range in a high performance Fiber Reinforced Concrete (FRC) such as DSP (Densified Small Particles). The analysis predicts two-way debonding at onset of first cracking in FRC’s containing randomly distributed, discrete steel fibers. Findings indicate that the extent of fiber debonding at first cracking is relatively low for DSP containing fiber volume fractions higher than 3% when compared to ordinary FRC containing fiber volume fractions less than 1%. This analysis allows a more accurate prediction of elastic strain in FRC’s.