väsymisvauriota
Väsymisvaurio refers to damage that occurs in materials due to repeated stress or loading cycles. This phenomenon is also known as fatigue failure. Unlike a sudden fracture caused by exceeding a material's ultimate strength, fatigue failure occurs at stress levels significantly below the material's yield strength. The damage accumulates over time with each application and removal of a load, leading to the formation and propagation of microscopic cracks. Eventually, these cracks grow to a critical size, and the material fails suddenly and often catastrophically.
The process of fatigue damage typically involves three stages: crack initiation, crack propagation, and final fracture.
Fatigue is a critical concern in many engineering applications, particularly in structures and components subjected to