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

doi:10.1016/j.ijimpeng.2021.104099

IMECH-IR > 流固耦合系统力学重点实验室

	An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives
	Wang, Haozhe 1; Yu, Anfeng 1; Feng C(冯春)2,3 ; Ling, Xiaodong 1; Chen, Guoxin 1; Gu, Meng 1; Zhu XG(朱心广)2,3
通讯作者	Yu, Anfeng(yuaf.qday@sinopec.com) ; Feng, Chun(fengchun@imech.ac.cn)
发表期刊	INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
	2022-03-01
卷号	161 页码:12
ISSN	0734-743X
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.
关键词	Natural fragments field Stacked shell-bearing explosives Continuous-discontinuous element method Cross-Scale Efficient Simulation
DOI	10.1016/j.ijimpeng.2021.104099
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000788761100003
关键词[WOS]	DISCONTINUITY EMBEDDED APPROACH
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
资助项目	National Natural Science Foundation of China[12002392]
项目资助者	National Natural Science Foundation of China
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Yu, Anfeng ; Feng, Chun
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/89055
专题	流固耦合系统力学重点实验室
作者单位	1.SINOPEC Res Inst Safety Engn Co Ltd, State Key Lab Chem Safety Control, Qingdao, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China; 3.Univ Chinese Acad Sci UCAS, Sch Engn Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Haozhe,Yu, Anfeng,Feng C,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.,冯春.,Ling, Xiaodong.,Chen, Guoxin.,...&朱心广.(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.

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