Ballistic Performance of BPN Igniter Compositions Containing Micron and Nano-Sized Boron Particles

BALLISTIC PENETRATION OF HARDENED STEEL PLATES Deniz, T.; Yıldırım, Raif Orhan (2013-04-26) The change in ballistic performance of AISI 4340 steel plates with different thicknesses and varying hardness against 7.62 AP (Armor Piercing) projectiles is studied. Four different target plate hardnesses are chosen. The commercial hydrocode software ANSYS Autodyn is used in numerical studies. Johnson-Cook strength model parameters for the varying target plate hardness are calibrated from mechanical tests. The numerical simulation results using this model are confirmed by a series of experimental test resu...
Ballistic penetration of hardened steel plates Deniz, Tansel; Yıldırım, Raif Orhan; Department of Mechanical Engineering (2011) Ballistic testing is a vital part of the armor design. However, it is impossible to test every condition and it is necessary to limit the number of tests to cut huge costs. With the intro- duction of hydrocodes and high performance computers; there is an increasing interest on simulation studies to cutoff these aforementioned costs. This study deals with the numerical modeling of ballistic impact phenomena, regarding the ballistic penetration of hardened steel plates by 7.62 mm AP (Armor Piercing) projectil...
Ballistic impact performance of an armor material consisting of alumina and dual phase steel layers Ubeyli, Mustafa; Deniz, Huseyin; DEMİR, TEYFİK; Ögel, Bilgehan; Gurel, Bayram; KELEŞ, Ömer (2011-03-01) Utilization of a ceramic front layer provides an improvement in the ballistic efficiency of monolithic metallic materials. In the current paper, the ballistic behavior of laminated composite having alumina front and dual phase steel backing layers was studied using 7.62 mm armor piercing (AP) projectiles under normal impact. The variables used were martensite content of the backing layer and the areal density of the composite. Experimental results showed that utilization of a 6 mm thick alumina front layer ...
Fatigue performance of PVA fibre reinforced cementitious composite overlays Aleessa Alam, Burhan; Yaman, İsmail Özgür (2019-07-31) Pavement maintenance and rehabilitation is as much important as the construction work itself. In this scope, applying the correct and efficient repair method is highly critical for economic and technical reasons. Depending on the damage level, many alternative repair methods exist. Using an overlay is one common method, where a new layer can be directly applied over or replace the top part of an existing pavement. This overlay can be made from asphalt or concrete as well. With the advances in the concrete t...
Corrosion Resistance and Cytocompatibility of Magnesium-Calcium Alloys Modified with Zinc- or Gallium-Doped Calcium Phosphate Coatings TAMAY, DİLARA GÖKSU; Gokyer, Seyda; Schmidt, Jurgen; Vladescu, Alina; HURİ, PINAR; Hasırcı, Vasıf Nejat; Hasırcı, Nesrin (2022-01-12) In orthopedic surgery, metals are preferred to support or treat damaged bones due to their high mechanical strength. However, the necessity for a second surgery for implant removal after healing creates problems. Therefore, biodegradable metals, especially magnesium (Mg), gained importance, although their extreme susceptibility to galvanic corrosion limits their applications. The focus of this study was to control the corrosion of Mg and enhance its biocompatibility. For this purpose, surfaces of magnesium-...

Citation Formats

S. Koç, F. Eroğul Kombe, and A. Ulaş, “Ballistic Performance of BPN Igniter Compositions Containing Micron and Nano-Sized Boron Particles,” 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/69512.