publication . Article . 2017

Microstructural observations on the terminal penetration of long rod projectile

Krushna Kumbhar; P. Ponguru Senthil; Atul Gogia;
Open Access English
  • Published: 01 Dec 2017 Journal: Defence Technology, volume 13, issue 6, pages 413-421 (issn: 2214-9147, Copyright policy)
  • Publisher: Elsevier
Abstract
Abstract Present study focuses on the terminal penetration of tungsten heavy alloy (WHA) long rod penetrator impacted against armour steel at an impact velocity of 1600 m/s. The residual penetrator and armour steel target recovered after the ballistic test have been characterized using optical microscope, scanning electron microscope (SEM) and electron probe micro analyzer (EPMA). Metallurgical changes in target steel and WHA remnant have been analysed. Large shear stresses and shear localization have resulted in local failure and formation of erosion products. Severe plastic deformation acts as precursor for formation of adiabatic shear band (ASB) induced crack...
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Medical Subject Headings: technology, industry, and agriculture
free text keywords: Long rod projectile, Terminal penetration, Shear localization, Adiabatic shear band, Tungsten heavy alloy, Armour steel, lcsh:Military Science, lcsh:U, Alloy, engineering.material, engineering, Optical microscope, law.invention, law, Tungsten, chemistry.chemical_element, chemistry, Composite material, Metallurgy, Scanning electron microscope, Shear (sheet metal), Materials science, Severe plastic deformation, Electron microprobe
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