Fatigue Failures in Industry and Their Repairs – Case Studies

In spite of numerous and expensive researches in the field of fatigue, cracks and failures caused by fatigue occur every day in all fields of human activity. The paper presents some typical fatigue damages in industry and transport. Fatigue failure of the main engine lateral support (at bulk carrier), fatigue cracks on the large portal crane, and fatigue cracks and failures of the large gear wheel of the cement mill are described. The complete fatigue damage analysis and repair procedures are presented, too