Vakum Destekli Reçine İnfüzyon Kalıplama ile Üretilmiş Twaron®/Epoksi Lamine Kompozit Plakaların 9 mm Mermi Tehdidine Karşı Balistik Performansı Üzerine Sayısal Çalışma

Bu makale, vakum infüzyon yöntemiyle epoksi reçine emdirilen 10 ile 16 katman sayıları arasındaki istiflenmiĢ Twaron® kumaşların oluşturduğu plakaların balistik etkisi üzerine yapılan deneyleri ve eksenel simetrik modellenen Autodyn-2D® simülasyonlarından elde edilen sonuçları sunmaktadır. Üretilen panellerin balistik darbe dayanımı NIJ-STD-0108.01 standardına göre belirlenmiştir. Tüm paneller, zırh uygulaması için MP5 silahı ile ortalama 390 m/s hızına sahip 9 mm FMJ mermilere karşı test edilmiştir. Plakaların mermi ile etkileşimi, atış sonrası hasar fotoğrafları, kurşunun artık hızları, Autodyn-2D® simülasyonları ile karşılaştırılmıştır. Optimum mermi hızı, tabaka kalınlığı ve çekme hasarı gerinim değerini belirlemek için analizde parametrik çalışma yapılmıştır. Simülasyondan elde edilen verilerin deneylerle tutarlı olduğu görülmüştür.

Anahtar Kelimeler:

Twaron®/epoksi kompozit, Balistik test, VARIM

Numerical Study on the Ballistic Performance of Twaron®/Epoxy Laminated Composite Plates Manufactured by Vacuum Assisted Resin Infusion Moulding Against 9 mm Bullet Threat

This article presents the experiments on the ballistic effect of plates formed by stacked Twaron® fabrics between 10 and 16 layer numbers impregnated with epoxy resin by vacuum infusion method and the results of Autodyn-2D® simulations using an axisymmetric model. The ballistic impact resistance of the panels produced was determined according to the NIJ-STD-0108.01 standard. All panels were tested against 9 mm FMJ bullets at an average velocity of 390 m/s with the MP5 gun for armour application. The interaction of the plates with the bullet, the post-shot damage photographs, residual velocities of the bullet were compared with Autodyn-2D® simulations. Parametric study was performed in the analysis to determine the optimum bullet velocity, layer thickness and tensile failure strain. It was observed that the data obtained from the simulations were consistent with the experiments.

Keywords:

Twaron®/epoxy composite, Ballistic test, VARIM,

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