摘要
疲劳裂纹的闭合现象改变了传统的疲劳裂纹扩展理论。虽然它的迟滞机制并没有引起材料疲劳断裂抗力任何本质的改善,而仅仅提高了表现的或非本质的失效抗力。但只要很好地理解并应用它,将会给准确地设计工程寿命提供很大的帮助。
The traditional theory of propagation of fatigue crack is transformed by the closure phenomenon ofcrack in fatigue. Though its sluggish mechanism doesn't essentially improve any fatigue crack resistance ofmaterial and it only increases the apparent or nonessential invalidation ability. it will contribute to accuracy designof the engineering lifetime while being mastered and used well.
出处
《安徽冶金》
2002年第3期8-11,共4页
Anhui Metallurgy
