This book investigates the time-dependent behavior of fiber-reinforced ceramic-matrix composites (CMCs) at elevated temperatures.
The author combines the time-dependent damage mechanisms of interface and fiber oxidation and fracture with the micromechanical
approach to establish the relationships between the first matrix cracking stress, matrix multiple cracking evolution, tensile
strength, tensile stress-strain curves and tensile fatigue of fiber-reinforced CMCs and time. Then, using damage models of
energy balance, the fracture mechanics approach, critical matrix strain energy criterion, Global Load Sharing criterion, and
hysteresis loops he determines the first matrix cracking stress, interface debonded length, matrix cracking density, fibers
failure probability, tensile strength, tensile stress-strain curves and fatigue hysteresis loops. Lastly, he predicts the
time-dependent mechanical behavior of different fiber-reinforced CMCs, i.e., C/SiC and SiC/SiC, using the developed approaches,
in order to reduce the failure risk during the operation of aero engines. The book is intended for undergraduate and graduate
students who are interested in the mechanical behavior of CMCs, researchers investigating the damage evolution of CMCs at
elevated temperatures, and designers responsible for hot-section CMC components in aero engines.