检索结果-南通市图书馆

Ballistic performance of spherical fragments penetrating PCrNi3MoV target plates

Defence Technology（防务技术） 2024年第3期33卷 295-307页

作者： Dou Hong Wenbin Li Yu Zheng Yiming Li Ning Jiang Kebin Zhang Ministerial Key Laboratory of ZNDY Nanjing University of Science and TechnologyNanjingChina

PCrNi3MoV steel is a medium-carbon,low-alloy quenched and tempered steel that finds its applications in military gun barrels due to the high wear resistance and ablation *** study the penetration and failure modes of PCrNi3MoV plates impacted by tungsten spheres,tungsten spheres of various diameters(5 mm,8 mm,and 10 mm)were used to impact PCrNi3MoV steel plates with thicknesses of 6 mm,9 mm,and 14 *** penetration performance of the spheres was analyzed for different velocities,and the ultimate penetration velocity of the plate was *** was found that the primary failure modes of the PCrNi3MoV plate were compression pitting failure and shear *** the dimensional analysis method,a relationship between the bulge height of the steel plate and the fragment velocity,an equation for the ultimate penetration velocity,and a relationship between the target penetration energy and the fragment velocity were ***,a projectile-target action index was proposed to describe the process of tungsten spheres with different velocities impacting target *** results suggested that under the same thickness of the target plate,a larger-diameter fragment required more kinetic energy to obtain the same ultimate penetration effect as a smaller-diameter *** equations obtained through dimensional analysis predicted values that agreed well with experimental values,indicating that these equations can be applied to engineering applications.

关键词： Impact damage ultimate penetration velocity Bulge height Target penetration energy Failure modes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Influence of the attitude of cylindrical tungsten alloy fragment on the ability of penetrating thin metal target plate

引用

钨科技(英文) 2023年第4期5卷 581-588页

作者： Chun Cheng Tian-Peng Li Guang Li Zhao-Xiu Jiang MOE Key Laboratory of Impact and Safety Engineering Ningbo UniversityNingbo315211China Army Engineering University of PLA Shijiazhuang CampusShijiazhuang050003China Inner Mongolia First Machinery Group Co. LtdBaotou014030China

The cylindrical tungsten alloy fragment is often prefabricated in the directional warhead to improve the killing ability or interception ability of the *** study the influence of the attitude of fragments on the ability to penetrate thin metal target plates,theoretical calculation,and numerical simulation are used to study the ultimate penetration velocity of cylindrical tungsten alloy fragments with different aspect ratios impacting thin metal target plates vertically with a different *** angle between the axis of a cylindrical tungsten alloy fragment and the normal direction of the target plate is defined as the attitude angle of the fragment perpendicular to the target *** is found that when the attitude angle changes from 0°to 90°,the ultimate penetration velocity of fragments increases first and then *** the length-to-diameter ratio of fragments is 1.0,1.2,and 1.5,the relative errors between the minimum and maximum values of the ultimate penetration velocity are about 11.99%,15.75%,and 14.35%,*** ultimate penetration velocity of fragments increases with the increase of the projection area of fragments on the target plate.

关键词： Tungsten alloy Cylindrical fragment Dynamic deformation ultimate penetration velocity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：