Failure Behaviours of Steel Projectiles with Localised Melting Against Armour Plates

  • Zhengxiang Shen Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048
  • Hu Chen Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048
  • Du Wang Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048
  • Shuqiang Yuan NingBo Institute, China North Material Science and Engineering Technology Group, Ningbo - 315 103
  • Dingyue Cheng Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048
  • Guorong Zhu Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048
Keywords: Projectile, Localised melting, Failure, Mass loss, Magnetic particle inspection

Abstract

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.

Author Biographies

Zhengxiang Shen, Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048

Dr Zhengxiang Shen, currently working in Ningbo Special Equipment Inspection & Research Institute, his research areas are failure prevention & analysis and engineering mechanics.

Hu Chen, Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048

Dr Hu Chen, currently working in Ningbo Special Equipment Inspection & Research Institute, his research area is mechanical engineering.

Du Wang, Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048

Mr Du Wang, currently working in Ningbo Special Equipment Inspection & Research Institute, his research area is nondestructive testing.

 

Shuqiang Yuan, NingBo Institute, China North Material Science and Engineering Technology Group, Ningbo - 315 103

Mr Shuqiang Yuan, senior research fellow of China North Material Science and Engineering Technology Group, His research area is material processing engineering. 

Dingyue Cheng, Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048

Mr Dingyue Chen, senior engineer with the rank of a professor, currently working in Ningbo Special Equipment Inspection & Research Institute, his research area is mechanical engineering.

Guorong Zhu, Port-Neighboring Equipment Safety Assessment Centre, Ningbo Special Equipment Inspection & Research Institute, Ningbo - 315 048

Mr Guorong Zhu, senior engineer with the rank of a professor, currently working in Ningbo Special Equipment Inspection &Research Institute, his research area is failure analysis of structure.

Published
2019-09-17
How to Cite
Shen, Z., Chen, H., Wang, D., Yuan, S., Cheng, D., & Zhu, G. (2019). Failure Behaviours of Steel Projectiles with Localised Melting Against Armour Plates. Defence Science Journal, 69(5), 489-494. https://doi.org/10.14429/dsj.69.13338