TY - JOUR AU - Zhengxiang Shen AU - Hu Chen AU - Du Wang AU - Shuqiang Yuan AU - Dingyue Cheng AU - Guorong Zhu PY - 2019/09/17 Y2 - 2024/03/29 TI - Failure Behaviours of Steel Projectiles with Localised Melting Against Armour Plates JF - Defence Science Journal JA - DSJ VL - 69 IS - 5 SE - Armaments & Explosives DO - 10.14429/dsj.69.13338 UR - https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/13338 AB - 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. ER -