Investigation of Bullet Damage to Alumina Ceramic at Different Angles

Year 2023, Volume: 15 Issue: 2, 786 - 793, 14.07.2023

Alemdar Ongun , Ömer Resuloğlu

https://doi.org/10.29137/umagd.1286016

Abstract

Alumina ceramics are often preferred in the defense industry at affordable costs. In this study, alumina ceramics were made to investigate the damage status after projectile impact. Alumina ceramics, known for their hard structure (1600 HV), first respond to the bullet impact on the front of the armors. After impacting, the ceramic breaks the piercing part of the bullet tip, showing resistance and geometrically mushrooms the bullet tip, allowing the effect to spread over a larger area. In numerical analysis, it was modeled as 7.62x51 mm (M80) bullet and 838 m/sec speed, which was reached in 23.7 meters in accordance with its standards, was taken as reference. As a result of the analyzes, the damage cases in both bullets and ceramics were examined and compared.

Keywords

Alumina Ceramic, Terminal Ballistic, Impact Angle

Farklı Açılarda Alümina Seramiğe Çarpan Mermi Hasarının İncelenmesi

Abstract

Yapılan bu çalışma, savunma sanayinde uygun maliyetiyle sıklıkla tercih edilen alümina seramiklerin, mermi çarpması sonrası hasar durumunu incelemek amacıyla yapılmıştır. Alümina seramikler sert (1600 HV) yapıları sebebiyle zırhların ön kısımlarında mermi darbesini ilk olarak karşılayan ve bu darbeyi mermi ucundaki sivri kısmı kırarak, direnç göstererek mermi uç kısmını geometrik olarak mantarlaştırarak, daha geniş bir alana yayması sağlamaktadır. Sayısal analizlerde 7,62x51 mm (M80) mermi olarak modellenerek, standartlarına uygun olarak 23,7 metrede ulaştığı hız olan 838 m/sn hız referans alınmıştır. Yapılan analizlerin sonuçlarında hem mermide hem de seramikte oluşan hasar durumları incelenmiştir.

Keywords

Alümina Seramik, Terminal Balistik, Çarpma Açısı

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