Criticality of post-impact motions of a projectile obliquely impacting a granular medium

doi:10.1016/j.powtec.2016.07.043

	Criticality of post-impact motions of a projectile obliquely impacting a granular medium
	Ye, Xiaoyan; Wang, Dengming; Zheng, Xiaojing; Wang, DM (reprint author), Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ China, Lanzhou 730000, Gansu, Peoples R China.; Wang, DM (reprint author), Lanzhou Univ, Dept Mech & Engn Sci, Sch Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China.
刊名	POWDER TECHNOLOGY
	2016-11-01
卷号	301 页码:1044-1053
关键词	Granular media Post-impact motion Diameter ratio Density ratio Critical angle
ISSN号	0032-5910
DOI	10.1016/j.powtec.2016.07.043
文献子类	Article
英文摘要	The post-impact motion of a projectile impacting a granular medium exhibits three different regimes: penetration, horizontal motion and rebound. In this paper, a statistical criterion is proposed at low impact velocities (v(o)<= 3m/s) to recognize these three different motions since the trajectories of projectiles are easily traced in discrete dynamical simulation. The effects of initial impact conditions and system variables on movement features of the projectile are mainly considered. Then a critical rebounding and penetrating angles are respectively proposed to accurately distinguish three different post-impact motions. Furthermore, a general formula is proposed to scale these two critical angles, which vary linearly with the impact velocity. The fluctuation and the intermittent time of the resistance force on the projectile exhibit different patterns for three post-impact motions, which may be a consequence of acoustic pulses transmitted along contact networks of particles. (C) 2016 Elsevier B.V. All rights reserved.
学科主题	Engineering
出版地	AMSTERDAM
资助项目	国家自然科学基金项目 ; 国家科技支撑计划 ; 中国博士后科学基金 ; 中央高校基本科研业务费专项资金
项目编号	National Key Technology RD Program [2013BAC07B01] ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China [11421062] ; National Natural Science Foundation of China [11232006, 11572144, 11502104] ; Ministry of Education ; Fundamental Research Funds for the Central Universities [lzujbky-2015-177] ; Postdoctoral Science Foundation of China [2013M530434] ; Key Laboratory of Mechanics on Environment and Disaster in Western (Lanzhou University) [201404]
语种	英语
WOS记录号	WOS:000384785300111
资助机构	NSFC ; MOST ; MOE ; CPSF ; LZU
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182565]
专题	土木工程与力学学院_期刊论文
通讯作者	Wang, DM (reprint author), Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ China, Lanzhou 730000, Gansu, Peoples R China.; Wang, DM (reprint author), Lanzhou Univ, Dept Mech & Engn Sci, Sch Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Ye, Xiaoyan,Wang, Dengming,Zheng, Xiaojing,et al. Criticality of post-impact motions of a projectile obliquely impacting a granular medium[J]. POWDER TECHNOLOGY,2016,301:1044-1053.
APA	Ye, Xiaoyan,Wang, Dengming,Zheng, Xiaojing,Wang, DM ,&Wang, DM .(2016).Criticality of post-impact motions of a projectile obliquely impacting a granular medium.POWDER TECHNOLOGY,301,1044-1053.
MLA	Ye, Xiaoyan,et al."Criticality of post-impact motions of a projectile obliquely impacting a granular medium".POWDER TECHNOLOGY 301(2016):1044-1053.