An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives

doi:10.1016/j.ijimpeng.2021.104099

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives
	Wang, Haozhe 3; Yu, Anfeng 3; Feng, Chun 1,2; Ling, Xiaodong 3; Chen, Guoxin 3; Gu, Meng 3; Zhu, Xinguang 1,2
刊名	INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
	2022-03-01
卷号	161 页码:12
关键词	Natural fragments field Stacked shell-bearing explosives Continuous-discontinuous element method Cross-Scale Efficient Simulation
ISSN号	0734-743X
DOI	10.1016/j.ijimpeng.2021.104099
通讯作者	Yu, Anfeng(yuaf.qday@sinopec.com) ; Feng, Chun(fengchun@imech.ac.cn)
英文摘要	The fragment field distribution of shell-bearing explosives is important to ensure safety during the production and storage of inflammable and explosive materials. This study uses the continuous-discontinuous element method (CDEM) for the first time to solve the problems encountered when simulating shell-bearing explosives such as natural fragment generation and cross-scale calculation. With the coupling computation of the finitediscrete element as its core, we design the natural fragment discrete unit generation algorithm by utilizing the shell equivalent layer-detonation product dissipation model based on continuous mechanics, dynamic drag flight calculations, and efficient point-face and face-face contact algorithms. Thus, a method has been established for the complete simulation of a full time-space field for natural fragments (from burst to fragment landing) of shelled explosives. In particular, CDEM, takes into account the complex situation wherein multiple explosions are initiated due to the shelled explosives being stacked on one another during storage. Comparisons with commercial software (AUTODYN) calculations and test data validate the accuracy and efficiency of the method, thereby providing adequate conditions for performing a refined study on fragment distributions and safe distances associated with shell explosives.
资助项目	National Natural Science Foundation of China[12002392]
WOS关键词	DISCONTINUITY EMBEDDED APPROACH
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000788761100003
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89054]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Yu, Anfeng; Feng, Chun
作者单位	1.Univ Chinese Acad Sci UCAS, Sch Engn Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China 3.SINOPEC Res Inst Safety Engn Co Ltd, State Key Lab Chem Safety Control, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Wang, Haozhe,Yu, Anfeng,Feng, Chun,et al. An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,2022,161:12.
APA	Wang, Haozhe.,Yu, Anfeng.,Feng, Chun.,Ling, Xiaodong.,Chen, Guoxin.,...&Zhu, Xinguang.(2022).An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives.INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,161,12.
MLA	Wang, Haozhe,et al."An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives".INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 161(2022):12.