Effect of stress ratio on stress intensity factor of type I crack in A7N01 aluminum alloy

doi:10.4028/www.scientific.net/KEM.774.259

CORC > 兰州理工大学 > 兰州理工大学 > 学报编辑部

	Effect of stress ratio on stress intensity factor of type I crack in A7N01 aluminum alloy
	Li, Youtang; Wang, Yadong; Yang, Long
	2018
会议日期	September 4, 2018 - September 6, 2018
会议地点	Bangkok, Thailand
关键词	ABAQUS Cracks Extrapolation Stress intensity factors Almost consistent Crack sizes Displacement extrapolation method Effect of stress Nodal displacement Simulation and analysis Stress intensity factor K Stress ratio
卷号	774 KEM
DOI	10.4028/www.scientific.net/KEM.774.259
页码	259-264
英文摘要	Taking the mode I crack of finite width plate as the research object, the nodal displacement extrapolation method of type I stress intensity factor is discussed, and the stress intensity factor expressed by nodal displacement is obtained. Taking A7N01 aluminum alloy as the research object, the finite element software ABAQUS was used to numerical simulation and analysis. The effect of stress ratio on stress intensity factor KI was discussed. The results showed that in the same crack size ratio a/W, the stress intensity factor increases with the increase of the stress ratio; at the same stress ratio R, the stress intensity factor increases with increasing crack size ratio. At the same time, change law of the stress intensity factor increase: under the condition of different stress ratio, when a/W≤0.6, the increase of stress intensity factor is almost consistent; when a/W>0.6, the increase of stress intensity factor will increase obviously. © 2018 Trans Tech Publications, Switzerland.
会议录	Key Engineering Materials
会议录出版者	Trans Tech Publications Ltd
语种	英语
ISSN号	10139826
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/117909]
专题	学报编辑部
作者单位	College of Mechanic-Electronic Engineering, Lanzhou Univ. of Tech, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Youtang,Wang, Yadong,Yang, Long. Effect of stress ratio on stress intensity factor of type I crack in A7N01 aluminum alloy[C]. 见:. Bangkok, Thailand. September 4, 2018 - September 6, 2018.