Abstract:

Multi-scale simulation is a vital analytical tool for elucidating the cross-scale mechanical behavior and failure mechanisms of fiber-reinforced ceramic matrix composites. Current research focuses on its applications in constitutive modeling, damage mechanism elucidation, and failure prediction under coupled environmental factors. Within the framework of micro-, meso-, and macro-scale coupling mechanisms, this paper systematically reviews the fundamental concepts, analytical strategies, and critical challenges associated with parameter transfer in multi-scale simulations. Emphasis is placed on the role of data-driven paradigms in enhancing multi-scale computational efficiency within multi-scale frameworks. Applications of these methods in damage constitutive modeling and oxidation damage analysis are comprehensively surveyed, with particular focus on tensile progressive damage, interfacial delamination, and crack propagation. The advantages of multi-scale simulation in capturing dynamic failure processes, such as crack initiation and propagation, are analyzed. Furthermore, recent advancements in multi-physics coupled damage modeling under high-temperature oxidative environments are explored, providing a theoretical basis for the design of ceramic matrix composites in extreme service conditions. Finally, an outlook on potential future developments of multi-scale simulation methods for ceramic matrix composites is presented.

Key words: multi-scale simulation, ceramic matrix composite, failure mechanism, mechanical property, review