While ceramic-matrix composites exhibit none of the fatigue mechanisms that are familiar in metals and polymers, they are, nevertheless, susceptible to reduced working performance under cyclic loading. The main source of this deterioration is the matrix cracking which occurs at low strain levels in brittle/brittle systems where the fibers and matrix possess different stiffnesses. As a result of this cracking, the apparent elastic modulus and Poisson's ratio of the composite ...
The tensile mechanical properties of a series of model 0/THETA/O glass-ceramic matrix composite angle-ply laminates have been measured at room temperature in an attempt to characterize the onset of damage in this class of material as a function of fiber orientation. The material selected for this study was a silicon carbide fiber-reinforced calcium aluminosilicate composite. The experimentally determined values of composite elastic modulus, strength and first ply failure stress have ...
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