Hava Araç Zırhlarının Balistik Performans Karakteristiğinin Sayısal İncelenmesi

Yıl 2016, Cilt: 1 Sayı: 2, 74 - 79, 01.12.2016

Seher Eken

Öz

Bu çalışmada hava araç zırhların balistik çarpması sayısal benzetim yoluyla gerçekleştirilerek performans tayinleri yapılmıştır. Yüksek performanslı elyaf kumaşlardan üretilmiş zırhların balistik çarpma cevabi ileri sonlu farklar yöntemi ile hesaplanmıştır. Silindirik merminin bükümlü ipliklerden dokunmuş kompozit kumaşa 90°’lik açı ile dik çarpması analiz edilmiştir. Pim-eklem (pin-joints) modeli kullanılarak iplik parçaları ayrık kütle-yaysönümleyici kullanılarak modellenmiştir. Çarpmadan sonra yer değiştirmeler, hızlardaki değişim, malzemede oluşan göçme miktarı hesaplanmış ve grafiksel olarak gösterilmiştir. Büküm etkisinin hava araç zırhlarının balistik performansına olan etkisi incelenmiştir

Anahtar Kelimeler

Hava araç zırhları, Elyaf takviyeli kompozit zırhlar, Silindirik mermi, İleri sonlu farklar metodu

NUMERICAL INVESTIGATION OF THE BALISTICAL PERFORMANCE CHARACTERISTICS OF THE AIRCRAFT ARMORS

Öz

The performance of ballistic impacts of airborne armor was determined by numerical simulation. The ballistic impact response of armor made from high performance fiber fabrics was calculated by the advanced end difference method. An analysis of the perpendicular bending of the cylindrical bullet with a 90 ° angle was performed on the composite fabric woven from twisted yarns. Pin-joints (pin joints) are modeled for discrete mass-spring-damper. Subsequent changes, rapid changes, are computed locally and graphically displayed. The effect of aircraft on ballistic performance of armor has been examined

Anahtar Kelimeler

Air vehicle armor, Fiber reinforced composite armor, Cylindrical projectile, Advanced end difference method

Kaynakça

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