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FRAGMENTS: 作品数：304被引量：505H指数：10; 导出分析报告; 相关领域：理学医药卫生更多>>; 相关作者：班丽霞李飞韩召军李明李超更多>>; 相关机构：中山大学中国科学院四川大学南京艺术学院更多>>; 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中国博士后科学基金更多>>

An equivalent target plate damage probability calculation mathematics model and damage evaluation method: 《Defence Technology（防务技术）》2024年第11期82-103,共22页Hanshan Li Xiaoqian Zhang; supported by National Natural Science Foundation of China (Grant No. 62073256);the Shaanxi Provincial Science and Technology Department (Grant No. 2023-YBGY-342)。; Aiming at the requirement of damage testing and evaluation of equivalent target plate based on the explosion of intelligent ammunition, this paper proposes a novel method for damage testing and evaluation method of ci...; 关键词：Target damage evaluation Damage probability FRAGMENTS Equivalent target plate Image processing

A cloud model target damage effectiveness assessment algorithm based on spatio-temporal sequence finite multilayer fragments dispersion: 《Defence Technology（防务技术）》2024年第10期48-64,共17页Hanshan Li Xiaoqian Zhang Junchai Gao; supported by National Natural Science Foundation of China(Grant No.62073256);the Shaanxi Provincial Science and Technology Department(Grant No.2023-YBGY-342).; To solve the problem of target damage assessment when fragments attack target under uncertain projectile and target intersection in an air defense intercept,this paper proposes a method for calculating target damage p...; 关键词：Target damage Cloud model Fragments dispersion Effectiveness assessment Spatio-temporal sequence

Double casing warhead with sandwiched charge:The axial distribution of fragments velocities被引量：1: 《Defence Technology（防务技术）》2024年第4期201-216,共16页Ping Ye Yongxiang Dong Qitian Sun Peizhuo Shi Wang Yao Yongnan Li Yujing Li Mingze Li; supported by the National Natural Science Foundation of China(Grant No.11872121)。; The double casing warhead with sandwiched charge is a novel fragmentation warhead that can produce two groups of fragments with different velocity,and the previous work has presented a calculation formula to determine...; 关键词：Double casing warhead Sandwiched charge Fragment velocity Rarefaction wave Gurney formula Explosive loading

Ballistic performances of the hourglass lattice sandwich structures under high-velocity fragments: 《Defence Technology（防务技术）》2024年第1期312-325,共14页He-xiang Wu Jia Qu Lin-zhi Wu; supported by the Defense Industrial Technology Development Program(Grant No.JCKY2018604B004);the National Natural Science Foundation of China(Grant No.11972007)。; In this paper,the numerical simulation method is used to study the ballistic performances of hourglass lattice sandwich structures with the same mass under the vertical incidence of fragments.Attention is paid to eluc...; 关键词：Hourglass lattice sandwich structures Ballistic performances high-velocity Finite element analysis

Debris cloud structure and hazardous fragments distribution under hypervelocity yaw impact被引量：1: 《Defence Technology（防务技术）》2023年第9期169-183,共15页Chenyang Wu Qi-Guang He Xiaowei Chen Chunbo Zhang Zebin Shen; supported by the National Natural Science Foundation of China(Grant No.11872118,11627901)。; This study investigates how the debris cloud structure and hazardous fragment distribution vary with attack angle by simulating a circular cylinder projectile hypervelocity impinging on a thin plate using the finite e...; 关键词：Debris cloud Hypervelocity yaw impact FE-SPH adaptive method Velocity space Hazardous fragments distribution

Lead spall velocity of fragments of ultra-high-performance concrete slabs under partially embedded cylindrical charge-induced explosion被引量：1: 《Defence Technology（防务技术）》2023年第5期50-59,共10页Yi Fan Li Chen Heng-bo Xiang Qin Fang Fang-yu Han; supported by the National Natural Science Foundation of China[No.51978166]。; When an explosion occurs close to or partially within the face of a concrete structure, fragments are rapidly launched from the opposite face of the structure owing to concrete spalling, posing a significant risk to n...; 关键词：Ultra-high-performance concrete Reinforced concrete slabs Explosion Fragment velocity Blast resistance

Analysis and design for the comprehensive ballistic and blast resistance of polyurea-coated steel plate被引量：3: 《Defence Technology（防务技术）》2023年第1期35-51,共17页Dongyang Chu Yigang Wang Shanglin Yang Zhijie Li Zhuo Zhuang Zhanli Liu; supported by the Science Challenge Project, No. TZ2018002;National Natural Science Foundation of China, under Grant No. 11972205, 11972210 and 11921002;the National Key Research Development Program of China (No. 2017YFB0702003); Fragments and blast waves generated by explosions pose a serious threat to protective structures.In this paper,the impact resistance of polyurea-coated steel plate under complex dynamic loading is analyzed and designe...; 关键词：POLYUREA Ballistic and blast resistance Combined fragments and blast loading

A fast and accurate model for the creation of explosion fragments with improved fragment shape and dimensions被引量：2: 《Defence Technology（防务技术）》2022年第2期159-169,共11页David Felix Ian Colwill Paul Harris; Explosion models based on Finite Element Analysis(FEA)can be used to simulate how a warhead fragments.However their execution times are extensive.Active protection systems need to make very fast predictions,before a f...; 关键词：Distribution of fragments Fragment shape Real-time simulation Cylindrical explosion

Field test and probabilistic analysis of irregular steel debris casualty risks from a person-borne improvised explosive device: 《Defence Technology（防务技术）》2021年第6期1852-1863,共12页Piotr W.Sielicki Mark G.Stewart Tomasz Gajewski MichałMalendowski Piotr Peksa Hasan Al-Rifaie Robert Studzinski Wojciech Sumelka; This work was supported by the Poland National Center for Research and Development,under the grant DOB-BIO10/01/02/2019 within the Defence and Security Programme.; Person-borne improvised explosive devices(PBIEDs)are often used in terrorist attacks in Western countries.This study aims to predict the trajectories of PBIED fragments and the subsequent safety risks for people expos...; 关键词：Flying fragments Human safety Person-borne improvised explosive device experiment Probabilistic analysis

A novel method for determination of lethal radius for high-explosive artillery projectiles被引量：2: 《Defence Technology（防务技术）》2021年第4期1217-1233,共17页Alan Catovic Elvedin Kljuno; A new model has been defined that enables the estimation of the lethal radius(radius of efficiency)of HE(High Explosive)artillery projectiles against human targets.The model is made of several modules:CAD(Computer Aid...; 关键词：High explosive projectiles Lethal radius FRAGMENTS Modeling

FRAGMENTS