Numerical study of armor with hard metal tiles as shattering elements
Hard metal (HM) refractory alloys based on tungsten carbide have relative high acoustic impedance and compressive strength comparable with AL2O3 (alumina) and is essentially less brittle.Tungsten carbide based HM alloys are used as cores for Armor Piercing (AP) penetrators (e.g.: 7.62x51WC,14.5AP BS41).Use of such materials in armor applications is uncommon due to their high density.When examined by DOP test as tiles placed with aluminum backing the HM showed ballistic efficiency lower than that of ballistic alumina grades.However, the HM showed some positive results against 20 mm FSP and 14.5AP when used as discrete cutting or shattering elements.In order to examine the concept of using HM as discrete shattering elements against 14.5AP, series of simulations were performed.The present paper describes the construction of the material model for HM and preliminary evaluation of the proposed targets, which were constructed and tested using numerical simulations.
Hard metal Numerical simulation 14.5 API projectile Shattering elements
A.Weiss V.Paris I.Gavish M.Ravid N.Shapira
Plasan Ltd., MP Merom Hagalil, 1387000, Israel Rimat Advanced Tech.Ltd., 8 Simtat Hayerek, Hod Hasharon, 45264, Israel
国际会议
2018 International Conference on Defence Technology (2018国际防务技术会议)
北京
英文
504-507
2018-10-21（万方平台首次上网日期，不代表论文的发表时间）