Pull-out of a ductile fibre from a brittle matrix
- 61 Downloads
Pull-out of a ductile fibre from a brittle matrix has been analysed using a shear lag model. Debonding at the fibre-matrix interface and yielding of the fibre occurred during the pull-out process. Both Poisson's contraction of the fibre and Coulomb friction of the debonded interface were considered. The debond length, which consists of an elastic zone length and a plastic zone length, was also analysed. When the fibre has a finite embedded length, it was found that necking prior to full pull-out of the fibre was required to optimize the toughening of a brittle matrix due to plastic deformation of the fibres. The essential material properties to achieve this are addressed.
KeywordsBrittle Plastic Deformation Material Property Plastic Zone Coulomb Friction
Unable to display preview. Download preview PDF.
- 30.J. P. Outwater and M. C. Murphy, in “Proceedings of the 24th Annual Technical Conference of Reinforced Plastic Composites Division”, (The Society of the Plastics Industry Inc., New York, 1969) p. 11c.Google Scholar
- 32.C. H. Hsueh, Mater. Sci. Eng. A145 (1990) 135.Google Scholar
- 34.R. Hill, “The Mathematical Theory of Plasticity” (Clarendon Press, Oxford, 1950).Google Scholar