Influence of Heat Input on the Ballistic Performance of Armor Steel Weldments

EasyChair Preprint 6254

Abstract

The purpose of this study is to examine the projectile penetration resistance of the base metal and heat-affected zones of armor steel weldments. To ensure the proper quality of armor steel welded joints and associated ballistic protection, it is important to find the optimum heat input for armor steel welding. A total of two armor steel weldments made at heat inputs of 1.29 kJ/mm and 1.55 kJ/mm were tested for ballistic protection performance. The GMAW welding carried out employing a robot controlled process. Owing to a higher ballistic limit, the heat affected zone (HAZ) of the 1.29 kJ/mm weldment was found to be more resistant to projectile penetration than that of the 1.55 kJ/mm weldment. The result showed that the ballistic resistance of heat affected zone exist as the heat input was decreased on 1.29 kJ/mm. It was found that 1.55 kJ/mm does not have ballistic resistance.

Keyphrases: Armor steel, Weldment, hardness level, projectile penetration

@booklet{EasyChair:6254,
  author    = {Aleksandar Čabrilo},
  title     = {Influence of Heat Input on the Ballistic Performance of Armor Steel Weldments},
  howpublished = {EasyChair Preprint 6254},
  year      = {EasyChair, 2021}}