This book presents experimental results and theoretical advances in the field of ultra-low-cycle fatigue failure of metal
structures under strong earthquakes, where the dominant failure mechanism is ductile fracture. Studies on ultra-low-cycle
fatigue failure of metal materials and structures have caught the interest of engineers and researchers from various disciplines,
such as material, civil and mechanical engineering. Pursuing a holistic approach, the book establishes a fundamental framework
for this topic, while also highlighting the importance of theoretical analysis and experimental results in the fracture evaluation
of metal structures under seismic loading. Accordingly, it offers a valuable resource for undergraduate and graduate students
interested in ultra-low-cycle fatigue, researchers investigating steel and aluminum structures, and structural engineers working
on applications related to cyclic large plastic loading conditions.