Semi-analytical model of the vertical impact of a 316 stainless steel rod

doi:10.1016/j.ijimpeng.2020.103694

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Semi-analytical model of the vertical impact of a 316 stainless steel rod
	Ye X(叶璇); Hu JQ(胡剑桥); Song JR(宋晶如); Liu XM(刘小明); Wei YG(魏悦广)
刊名	INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
	2020-12-01
卷号	146 页码:103694
关键词	Vertical impact DYNAMIC SPHERICAL INDENTATION Length/diameter ratio NUMERICAL-SIMULATION Elasto-plastic contact PENETRATION Equivalent spring model CONTACT GLASS
ISSN号	0734-743X
DOI	10.1016/j.ijimpeng.2020.103694
英文摘要	A semianalytical model was proposed to study the vertical impact of a slender rod striking a rigid flat surface. Within the semianalytical model, we considered the longitudinal vibration of the rod by using continuum mechanics while employing a plastic contact model, an equivalent spring model, to describe the contact of the linear hardening hemispherical tip and a rigid flat surface. The predicted displacement and velocity histories along the rod agreed well with the corresponding finite element simulations. In addition, from the proposed semianalytical model, we determined that there was a critical length/diameter ratio that can be used for any plastic contact of a linear hardening rod. The critical length/diameter ratio was approximately 17 for a rod made of 316 stainless steel. Below this critical length/diameter ratio, the rod behaved as a rigid body, i.e., the velocities of different sections of the rod reversed simultaneously during the impact. Above this critical length/diameter ratio, the velocity of the top section reversed much earlier than the other sections of the rod; hence, the slenderness effect should be accounted for in these conditions.
分类号	一类
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000582322700003
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11902311, 11972347, 11772334} ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2019M650699} ; Youth Innovation Promotion Association CAS [2018022} ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB22040501}
其他责任者	Liu, XM
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85418]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.{Ye Xuan, Hu Jianqiao, Song Jingru, Liu Xiaoming} UCAS Sch Engn Sci Beijing 100049 Peoples R China 2.{Wei Yueguang} Peking Univ Coll Engn Beijing 100871 Peoples R China 3.{Ye Xuan, Hu Jianqiao, Song Jingru, Liu Xiaoming} Chinese Acad Sci Inst Mech LNM Beijing 100190 Peoples R China
推荐引用方式 GB/T 7714	Ye X,Hu JQ,Song JR,et al. Semi-analytical model of the vertical impact of a 316 stainless steel rod[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,2020,146:103694.
APA	叶璇,胡剑桥,宋晶如,刘小明,&魏悦广.(2020).Semi-analytical model of the vertical impact of a 316 stainless steel rod.INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,146,103694.
MLA	叶璇,et al."Semi-analytical model of the vertical impact of a 316 stainless steel rod".INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 146(2020):103694.