Life Prediction in High-Temperature Structural Materials

摘要: Life prediction methods are required to assess the performance and safety of structural materials used in engineering systems components that operate at high temperatures. At temperatures, subject time-dependent creep environmental degradation, as well cycle-dependent fatigue degradation. The life must account for all these degradation mechanisms their possible interactions. purpose this paper is review predict materials. Traditional have been based on initiation a significant crack; whereas more recent employ fracture mechanics growth crack from some initial size critical size. Crack-growth-based emphasized review.