Falling Weight Low Velocity Ballistic Testing and Its Damage on Different Type of Metals

Year 2022, Volume: 25 Issue: 4, 1595 - 1601, 16.12.2022

Şükrü Talaş Mustafa Yazar Milat Kul Hilal Kır

https://doi.org/10.2339/politeknik.884115

Abstract

In this research, the damage mechanism applied by the projectile at the ballistic tip on the samples during the ballistic test of the samples consisting of different materials with the same wall thickness as the ballistic test was attempted to determine. Free falling low velocity ballistic test was performed in order to compare stainless steel, brass, copper, low carbon steel materials with the same wall thickness section. A jig consisting of sensitive force readings was set up and its principles were established. This study showed that the projectile tip creates a deformation zone as well as the state of absorbing the impact on the material which are possible to determine by sensitive measurements. Stainless steel and Brass showed better performance than low C steel and Copper due possibly to low work hardening property. K, strength coefficient, showed a significant correlation with the results.

Keywords

Impact damage, low velocity ballistic, ballistic testing, strength coefficient, ballistic resistance

Supporting Institution

R&D Center, Şahinkul Machine and Spare Parts Manuf. Ltd. Co., Bursa,Turkey,

Project Number

AR&GE_2020_014_2000040000

Düşen Ağırlıklı Düşük Hız Balistik Testi ve Farklı Metal Türlerindeki Hasarı

Abstract

Bu araştırmada, balistik test ile aynı et kalınlığına sahip farklı malzemelerden oluşan numunelerin balistik testi sırasında balistik uçta mermi tarafından uygulanan hasar mekanizması belirlenmeye çalışılmıştır. Aynı et kalınlığına sahip paslanmaz çelik, pirinç, bakır, düşük karbonlu çelik malzemeleri karşılaştırmak için serbest düşen düşük hızda balistik test yapılmıştır. Hassas kuvvet okumalarından oluşan bir düzenek kurulmuş ve çalışma prensipleri belirlenmiştir. Bu çalışma, mermi ucunun bir deformasyon bölgesi oluşturduğunun yanı sıra, hassas ölçümlerle belirlenmesi mümkün olan malzeme üzerindeki etkiyi absorbe etme durumunu da göstermiştir. Paslanmaz çelik ve Pirinç, muhtemelen düşük pekleşme özelliği nedeniyle düşük C çelik ve Bakırdan daha iyi performans göstermiştir. Dayanım katsayısı olan K, sonuçlarla anlamlı bir korelasyon göstermiştir.

Keywords

Darbe hasarı, düşük hız balistiği, balistik test, dayanım katsayısı, balistik dayanım

Project Number

AR&GE_2020_014_2000040000

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