Research Progress of the Fatigue, Crack and Failure Mechanisms of Materials and Structures

Dear Colleagues,

In recent years, significant advancements have been made in the study of fatigue, crack formation, and failure mechanisms in various materials and structures. These developments have improved mechanical design, enhanced structural integrity, and enabled more accurate failure analysis. Understanding these failure mechanisms is crucial to ensure the safety and longevity of structures and to develop more reliable materials for a wide range of applications.

The exploration of failure mechanisms encompasses a diverse array of materials and structures, including metals, polymers, ceramics, composites, and biological tissues. The inclusion of biological tissues in the study of failure mechanisms is also essential, as it provides valuable insights for biomedical applications, prosthetics, and tissue engineering.

The failure mechanisms encountered in various materials and structures encompass a broad range of phenomena. These include fatigue, corrosion, creep, brittle fracture, material degradation, and other complex processes. Through extensive research and experimentation, scientists and engineers have gained a deeper understanding of these mechanisms, leading to the development of innovative materials and structures. For instance, the utilization of high-strength or high-entropy alloys has demonstrated improved mechanical resistance to different failure mechanisms. Additionally, the exploration of renewable and sustainable materials, such as wood, has provided alternative solutions with lower carbon footprints.

Advancements in additive manufacturing technologies have also presented new challenges related to failure mechanisms and structural integrity. The development and widespread industrial use of additive manufacturing have led to the need for comprehensive research into failure mechanisms in 3D-printed materials and structures. Understanding the behaviour of these materials under various loading conditions is crucial for ensuring their reliability and safety.

Furthermore, emerging fields, such as hydrogen energy, introduce unique failure mechanisms and structural integrity considerations. The production, storage, transportation, and utilization of hydrogen as a fuel for industrial processes, fuel cell vehicles, and hydrogen combustion engines require in-depth research to understand and mitigate potential failure modes.

In this Special Issue, we aim to explore the research progress made in understanding the fatigue, crack formation, and failure mechanisms of materials and structures. We invite researchers and practitioners from various disciplines to contribute their expertise and insights to further enhance our understanding in these areas. By incorporating diverse materials, such as biological tissues, and considering the challenges posed by additive manufacturing and emerging fields like hydrogen energy, we can pave the way for safer, more reliable, and sustainable materials and structures in the future.

Dr. José Xavier
Dr. Rui C. Martins
Guest Editors

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