High-Temperature Matrix Cracking, Opening and Closure in Ceramic-Matrix Composites

Ceramic matrix composites (CMCs) can withstand higher temperatures, reduce cooling airflow, improve turbine efficiency, and greatly reduce structural mass compared to the high temperature alloys. This book focuses on the matrix first/multiple cracking, crack opening and closure behavior in CMCs at high temperatures.

While conducting in situ experimental observations to analyze the damage mechanisms and failure modes, the author develops micromechanical damage models and constitutive models to predict the first matrix cracking stress, multiple matrix cracking density, matrix crack opening displacement, and cracking closure stress at high temperatures. The effects of composite’s constituent properties, stress level, and ambient temperature on matrix cracking, opening, and closure are also discussed.

This book will help material scientists and engineering designers to understand and master the matrix cracking and closure behavior of fiber-reinforced CMCs.

Author Biography

Longbiao Li is a lecturer at College of Civil Aviation, Nanjing University of Aeronautics and Astronautics. Dr. Li’s research focuses on the vibration, fatigue, damage, fracture, reliability, safety and durability of aircraft and aero engines. In this research area, he is the first author of 204 SCI journal publications (59 JCR Q1), 11 monographs, 4 edited books, 4 textbooks, 3 book chapters, 33 Chinese patents, 2 US patents, 2 Chinese software copyrights, and more than 30 refereed conference proceedings. 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.