Shock Wave Mitigation in Heterogeneous Systems: A Review

This review paper comprehensively surveys recent work on shock wave mitigation in heterogeneous structures, encompassing analytical, numerical, and experimental approaches. It explores the physical mechanisms of shock wave propagation, the interaction with material microstructure, and factors that affect peak stress, pulse duration, and stress impulse, leading to significant attenuation. The paper outlines techniques for creating shock and blast waves, examining relevant underlying theories, and identifies configurations-multilayer systems, impedance grading, fibre and particulate composites, and constituent orientation modification-that mitigate shock waves by altering their form. Factors contributing to mitigation and their influence on wave propagation in different configurations are discussed. Lastly, the paper addresses current challenges and future directions, emphasizing the need for accurate modelling tools, material property optimization, and the integration of mitigation strategies. Aimed at researchers, engineers, and practitioners, this review paper serves as a comprehensive reference for designing and testing structures resilient to shock wave loading.