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FRAGMENTATION: 作品数：463被引量：556H指数：11; 导出分析报告; 相关领域：理学更多>>; 相关作者：石建功再帕尔·阿不力孜梁峰何晓赵丽艳更多>>; 相关机构：对外经济贸易大学中国医学科学院北京协和医学院北京大学中国科学院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划山西省自然科学基金国家教育部博士点基金更多>>

Data driven prediction of fragment velocity distribution under explosive loading conditions: 《Defence Technology(防务技术)》2025年第1期109-119,共11页Donghwan Noh Piemaan Fazily Songwon Seo Jaekun Lee Seungjae Seo Hoon Huh Jeong Whan Yoon; supported by Poongsan-KAIST Future Research Center Project;the fund support provided by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(Grant No.2023R1A2C2005661)。; This study presents a machine learning-based method for predicting fragment velocity distribution in warhead fragmentation under explosive loading condition.The fragment resultant velocities are correlated with key de...; 关键词：Data driven prediction Dynamic fracture model Dynamic hardening model FRAGMENTATION Fragment velocity distribution High strain rate Machine learning

Recent progress on impact induced reaction mechanism of reactive alloys: 《Defence Technology（防务技术）》2024年第7期69-95,共27页Yansong Yang Chuanting Wang Yuanpei Meng Yue Ma Lei Guo Yuan He Zhichao Sun Yong He; sponsored by NSFC (Grant No.U2241285)。; In recent years,in order to improve the destructive effectiveness of munitions,the use of new types of destructive elements is an important way to improve destructive effectiveness.As a new type of reactive material,r...; 关键词：Reactive alloys IMPACT FRAGMENTATION Mass and size distribution Shock temperature rise Adiabatic shear COMBUSTION

Design of Multi-layered Protection Against Guided Mortar Threats Yhrough Numerical Modeling: 《Defence Technology（防务技术）》2023年第11期55-65,共11页Bonny Thawani Seng Kiat Lim Laura Brown Richard Critchley Rachael Hazael; The trade—off between protection and weight is a constant consideration when designing a portable protective solution.Greater mobility is a desirable attribute and protection must therefore adapt,prompting a demand f...; 关键词：Hydrocode FRAGMENTATION High velocity Composite structures FOAMS

Exploring effects of property variation on fragmentation of metal rings using a simple model: 《Defence Technology（防务技术）》2023年第5期1-7,共7页J.D.Robson; funding through the LightForm program grant EP/R001715/1; A simple finite element implementation of the Mott model for fragmentation of a thin walled ring has been implemented and used to explore the effect of local variations in fracture strain around the ring.The model has...; 关键词：FRAGMENTATION Mott model Property variation

Study on energy release characteristics of reactive material casings under explosive loading被引量：6: 《Defence Technology（防务技术）》2021年第5期1791-1803,共13页Ning Du Wei Xiong Tao Wang Xian-feng Zhang Hai-hua Chen Meng-ting Tan; the Fundamental Research Funds for the Central Universities(No.30920021108);Open Foundation of Hypervelocity Impact Research Center of CARDC(20200106).; Reactive Materials(RMs),a new material with structural and energy release characteristics under shockinduced chemical reactions,are promising in extensive applications in national defense and military fields.They can ...; 关键词：Reactive materials Explosive loading Shock-induced chemical reaction Energy release characteristics FRAGMENTATION

Fracture mechanism of a cylindrical shell cut by circumferential detonation collision被引量：4: 《Defence Technology（防务技术）》2021年第5期1650-1659,共10页He-yang Xu Wei-bing Li Wen-bin Li Qing Zhang Ya-jun Wang Xiao-wen Hong Ying Yang; the National Natural Science Foundation of China No.11972018;the Defense Pre-Research Joint Foundation of Chinese Ordnance Industry No.6141B012858.; The failure mechanism of a cylindrical shell cut into fragments by circumferential detonation collision was experimentally and numerically investigated.A self-designed detonation wave regulator was used to control the...; 关键词：Detonation wave Circumferential detonation collision Fracture mechanism Fragmentation control

Estimating the metal acceleration ability of high explosives被引量：2: 《Defence Technology（防务技术）》2020年第1期225-231,共7页Dany Frem; The Gurney method is widely used in the conceptual design stage of explosive fragmentation warheads employed in various weapons systems.This method states that the peak fragment velocity(V_0) is a function of the Gurn...; 关键词：Gurney VELOCITY High explosives Aluminized explosives COMBINED effects explosives FRAGMENTATION warheads

Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity被引量：5: 《Defence Technology（防务技术）》2019年第6期912-922,共11页Mo-ang Lei Hai-fu Wang Qing-bo Yu Yuan-feng Zheng; Impact experiments of large-caliber PELE with various inner-outer diameter ratio perforating RHA plate at low velocity were performed.Experimental results showed the size of perforated holes on plate,average diameter ...; 关键词：PELE Enhanced lateral effect Penetration mechanics Behind-armor fragments

Deformation,fragmentation and acceleration of a controlled fragmentation charge casing被引量：1: 《Defence Technology（防务技术）》2019年第5期786-795,共10页Andreas Helte Olof Andersson Patrik Lundberg; funded by the Swedish Armed Forces under Grant No AF.9220616; Two different finite element software,LS-DYNA and Impetus,have been evaluated to test their ability to predict the deformation,fragmentation and acceleration of a controlled fragmentation charge casing.The general-pur...; 关键词：CONTROLLED FRAGMENTATION Fracture MECHANICS LS-DYNA Impetus

Split warhead simultaneous impact被引量：1: 《Defence Technology（防务技术）》2017年第6期434-438,共5页Rahul Singh Dhari Aravind Sekar; A projectile system is proposed to improve efficiency and effectiveness of damage done by anti-tank weapon system on its target by designing a ballistic projectile that can split into multiple warheads and engage a ta...; 关键词：Mathematical formulations AERODYNAMICS MILITARY technology and weapons systems PROJECTILE and target FRAGMENTATION WARHEAD SPLIT WARHEAD

FRAGMENTATION