Journal
METALS
Volume 11, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/met11040526
Keywords
armour protection; perforated plates; ballistic behavior; blast mitigation
Funding
- Ministry of Education, Science and Technological Development of the Republic of Serbia [451-03-68/2020-14/200156]
- Department of Production Engineering, Faculty of Technical Sciences Novi Sad, Serbia
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Perforated plates are increasingly used in the armour systems of armoured vehicles for their ability to induce bend stresses and high multi-impact resistance. Made of metallic materials, perforated plates have lower raw material costs compared to ceramics or composite materials, making them attractive for both present and future armoured vehicles.
In recent years, the interest of the scientific community in perforated plates for ballistic protection has increased. Perforated plates do not represent protection by themselves, rather, they are used in the armour systems of armoured vehicles, in conjunction with base armour, since they are intended to induce bend stresses, where a penetrating core fracture occurs. The fragments are subsequently stopped by base armoured vehicle armour. Although for the first time used several decades ago, perforated plates are found to be attractive even today. The main reason is the combination of very convenient properties. Besides high mass effectiveness, they possess a high multi-impact resistance, since their perforations arrest cracks. Therefore, a relatively wide array of materials is suitable for perforated plate fabrication, ranging from alloy steel to some types of cast iron. Being made of metallic materials, raw material costs are relatively low compared to ceramics or composite materials, making them very attractive for present and future armoured vehicles. Finally, armour system consisting of a perforated plate and base plate at some distance, reduce the effectiveness of both shaped charge jets and act as blast mitigators.
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