Damage, Fracture, and Fatigue of Ceramic-Matrix Composites (eBook)

Li Longbiao has been a lecturer at Nanjing University of Aeronautics and Astronautics since 2012. He graduated from Nanjing University of Aeronautics and Astronautics and received his PhD degree in 2011. His research focuses on fatigue, damage and fracture in high-temperature, ceramic-matrix composites, and in the past five years he has been the first author of 99 SCI papers in journals such as Ceramics International, the Journal of the European Ceramic Society, Composites Part B, the International Journal of Mechanical Sciences, Theoretical and Applied Fracture Mechanics, the International Journal of Fatigue, Materials Science and Engineering A, Engineering Fracture Mechanics, and the International Journal of Fracture. He has been involved in different projects related to structural damage, reliability and airworthiness design for aircraft and aero engines, supported by the Natural Science Foundation of China, COMAC Company and AECC Commercial Aircraft Engine Company.

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This book focuses on the damage, fracture and fatigue of ceramic-matrix composites. It investigates tensile damage and fracture, fatigue hysteresis, and the properties of interfaces subjected to cyclic fatigue loading. Further, it predicts fatigue life at room and elevated temperatures using newly developed damage models and methods, and it analyzes and compares damage, fracture and fatigue behavior of different fiber performs: unidirectional, cross-ply, 2D and 2.5D woven. The developed models and methods can be used to predict the damage and lifetime of ceramic-matrix composites during applications on hot section components.Ceramic-matrix composites (CMCs) are high-temperature structural materials with the significant advantages of high specific strength, high specific modulus, high temperature resistance and good thermal stability, which play a crucial role in the development of high thrust weight ratio aero engines. The critical nature of the application of these advanced materials makes comprehensive characterization a necessity, and as such this book provides designers with essential information pertaining not only to the strength of the materials, but also to their fatigue and damage characteristics.