Analysis characteristics and causes of adiabatic shear bands produced during the artillery barrel explosion. (March 2020)

• Record Type: Journal Article
• Authors: Zhang, Zh W; Wang, F; Liu, S F; Li, Zh J; Sun, Y D; Zhang, Y
• Is Part Of: Journal of physics. Volume 1507:Number 3(2020)
• Publication Date: 2020-03
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1507/3/032037
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: It was studied that the characteristics and causes of adiabatic shear bands produced during the artillery barrel explosion when launching medium caliber projectiles. It shows that at the breech position, the strain required for the adiabatic shear band can be achieved, resulting in the adiabatic shear band, which is in a state of discontinuity and has an angle of about 20∼45 degrees with the barrel. After the appearance of adiabatic shear band, the strain rate is very high, and high heat is produced locally due to large plastic distortion, which can not be output, resulting in the intensification of deformation and the bursting of barrel. And the same time, the critical shear strain and temperature of the adiabatic shear band are calculated under this condition.