Open AccessFailure Behaviours of Steel Projectiles with Localised Melting Against Armour Plates
Author(s) -
Zhengxiang Shen,
ChiChang Hu,
Du Wang,
Shuqiang Yuan,
Dingyue Cheng,
Guorong Zhu
Publication year - 2019
Publication title -
defence science journal/defence science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.198
H-Index - 32
eISSN - 0976-464X
pISSN - 0011-748X
DOI - 10.14429/dsj.69.13338
Subject(s) - projectile , armour , survivability , materials science , structural engineering , warhead , shear (geology) , forensic engineering , composite material , mechanics , engineering , aerospace engineering , metallurgy , physics , layer (electronics)
The surface remelting technology of high energy beam can locally weaken the case for controlled fragmentation, which may affect the survivability of the impacting projectiles. Failure behaviours of steel projectiles with melted layers grid normally perforating armour plates was investigated. The results reveal that shear fracture mainly occurs in the nose region of projectiles due to high loading, and the melting zone of projectiles can keep integrity with no damage, which means the survivability of projectile can be assured. Furthermore, an analytical model was proposed to the structural analysis of projectile, which is in accordance with the test results.