Fiber/matrix debonding and ply to ply delamination, cracks matrix, rupture of fibers are addressed.
Observations showed surface tensions increase the passive film thickness which can control pit and crack matrix formation thus wear loss mechanisms.
To account for the importance of fiber architecture, the fracture process zone (FPZ) characterised by discrete embedded reinforcement and cracking matrix, is of discontinuous bridging stresses.
Then, the onset and progress of three damage mechanisms (transverse matrix cracking, matrix crack induced delamination and free-edge delamination) for both regions are analyzed by monitoring the specimen's free-edge.
The effects of matrix cracking, fiber-matrix interfacial debonding and change in the microstructure of natural fibers are all considered in this theoretical model.
Thus, several different failure modes of braided composites under mechanical loadings were included, such as fibre fracture, fibre kinking, matrix cracking, matrix crushing, nonlinear shearing and delamination.
The results obtained from this study clearly indicated the non-steady state (short crack) and steady state (long crack) matrix cracking behaviors in ceramic matrix composites.
The failure mechanisms at micro level include fiber fracture, long range fiber bundle pull-out, fiber bridging, fiber/matrix interface debonding, matrix cracking, matrix fragment desquamating and matrix peeling.
The model accounts for fibre and matrix cracking, matrix plasticity, and fibre-matrix interfacial sliding through seven characteristic non-dimensional parameters, which combine geometric, phase and interface properties.
