Effect of grain size on collective damage of short cracks and fatigue life estimation for a stainless steel

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Effect of grain size on collective damage of short cracks and fatigue life estimation for a stainless steel
	Hong YS(洪友士); Qiao Y(乔宇); Liu N(刘娜); Zhang X(郑秀华)
刊名	Fatigue & Fracture of Engineering Materials & Structures
	1998
卷号	21 期号:11 页码:1317-1325
ISSN号	8756-758X
通讯作者	Hong, Y (reprint author), Chinese Acad Sci, Lab Nonlinear Mech Continuous Media, Inst Mech, Beijing 100080, Peoples R China.
中文摘要	In the short crack regime of the fatigue process, grain boundaries in steels are barriers against crack growth. In this paper, we use: (1) a method involving crack density; and (2) a method of dimensional analysis, to evaluate the effects of grain size and grain-boundary resistance on short crack behaviour and fatigue life. The results show that the fatigue life increases with a decrease in grain size and an enlargement in the obstacle effect of a grain boundary. An experimental investigation is consequently performed and four groups of stainless steel specimens are used with different grain sizes. The experimental measurements show the dependence of fatigue properties on grain size, which are in good agreement with the theoretical results.
学科主题	力学
类目[WOS]	Engineering, Mechanical ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
关键词[WOS]	WELD METAL ; PROPAGATION ; GROWTH ; SIMULATION ; INITIATION ; EVOLUTION ; ALUMINUM
收录类别	SCI
语种	英语
WOS记录号	WOS:000077863300004
公开日期	2007-06-15
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/15516]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Hong YS,Qiao Y,Liu N,et al. Effect of grain size on collective damage of short cracks and fatigue life estimation for a stainless steel[J]. Fatigue & Fracture of Engineering Materials & Structures,1998,21(11):1317-1325.
APA	洪友士,乔宇,Liu N,&Zhang X.(1998).Effect of grain size on collective damage of short cracks and fatigue life estimation for a stainless steel.Fatigue & Fracture of Engineering Materials & Structures,21(11),1317-1325.
MLA	洪友士,et al."Effect of grain size on collective damage of short cracks and fatigue life estimation for a stainless steel".Fatigue & Fracture of Engineering Materials & Structures 21.11(1998):1317-1325.