Stress-displacement relation of fiber for fiber-reinforced ceramic composites during (indentation) loading and unloading
- 1 December 1989
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 4 (6), 1529-1537
- https://doi.org/10.1557/jmr.1989.1529
Abstract
The stress-displacement relation of the fiber is analyzed for fiber-reinforced ceramic composites during axial compressive loading (indentation) and unloading on the exposed end of an embedded fiber. An unbonded fiber/matrix interface subject to Coulomb friction and residual radial clamping stresses is considered in the present study. The results show that the stress-displacement curves during loading and unloading can be used to evaluate the magnitude of the clamping stress, the coefficient of friction, and the frictional stress distribution at the interface. Specifically, in the absence of Poisson's effect (i.e., when Poisson's ratio of the fiber is zero), the interfacial shear stress is constant, the loading curve is parabolic, and, after complete unloading, the residual fiber displacement equals half of the maximum fiber displacement at the peak loading stress. In the presence of Poisson's effect, the interfacial shear stress is not constant, and, after complete unloading, the residual fiber displacement is less than half of the maximum fiber displacement at the peak loading stress.Keywords
This publication has 10 references indexed in Scilit:
- Direct measurements of the frictional resistance to sliding of a fiber in a brittle matrixScripta Metallurgica, 1988
- Toughening Behavior in Whisker‐Reinforced Ceramic Matrix CompositesJournal of the American Ceramic Society, 1988
- Elastic load transfer from partially embedded axially loaded fibre to matrixJournal of Materials Science Letters, 1988
- Shear‐Lag Analysis of Fiber Push‐Out (Indentation) Tests for Estimating Interfacial Friction Stress in Ceramic‐Matrix CompositesJournal of the American Ceramic Society, 1988
- Fibre-matrix bond strength studies of glass, ceramic, and metal matrix compositesJournal of Materials Science, 1988
- Role of Fiber-Matrix Interfacial Shear Stress on the Toughness of Reinforced Oxide Matrix CompositesMRS Proceedings, 1988
- Measurement of Interfacial Mechanical Properties in Fiber‐Reinforced Ceramic CompositesJournal of the American Ceramic Society, 1987
- The mechanics of matrix cracking in brittle-matrix fiber compositesActa Metallurgica, 1985
- The Elastic Moduli of Fiber-Reinforced MaterialsJournal of Applied Mechanics, 1964
- A variational approach to the theory of the elastic behaviour of multiphase materialsJournal of the Mechanics and Physics of Solids, 1963