parçacık takviyelendirilmiş alüminyum sandviç köpük ile Ramor 500 zırh çeliğinin bir araya getirilmesi ve balistik performansının araştırılması B 4 C/SiC/Al 2 O 3 particle reinforced aluminum sandwich foam and Ramor 500 armor steel to be combined and investigation of the ballistic performance Yazar(lar) (Author(s)): Halil KARAKOÇ 1 , Aytekin ULUTAŞ 2 , Hanifi ÇİNİCİ 3 Bu makaleye şu şekilde atıfta bulunabilirsiniz (To cite to this article): Karakoç H., Ulutaş A., ve Çinici H., "B4C/SiC/Al2O3 parçacık takviyelendirilmiş alüminyum sandviç köpük ile Ramor 500 zırh çeliğinin bir araya getirilmesi ve balistik performansının araştırılması", Politeknik Dergisi, 23(2): 297-310, (2020).Erişim linki (To link to this article): http://dergipark.gov.tr/politeknik/archive ÖZ Bu çalışmada toz metalurjisi yöntemi ile hazırlanan SiC, B4C ve Al2O3 içeren ve parçacık içermeyen Al sandviç köpüklerin (ASK) balistik performansları araştırılmıştır. Bu amaçla, karışım tozlar soğuk presleme işleminden sonra ekstrüze hadde işlemine tabi tutularak 690 ˚C köpürtme sıcaklığında 50x50x20 mm 2 ölçülerinde blok şeklinde sandviç köpükler üretilmiştir. Üretilen sandviç köpükler 50x50x7 mm 2 boyutlara sahip olan Ramor 500 zırh çeliği silikon esaslı reçine ile yapıştırılarak balistik test için zırh numuneleri hazırlanmıştır. Yapılan çalışmada sandviç köpüklerin önde olduğu tasarımlarda zırh çeliğinden kopan parçacık çapının daha az olduğu tespit edilmiştir. Ayrıca balistik çarpma sonucunda sandviç köpüklerde lokalize yoğunlaşma ve taç yaprağı şeklinde hasar meydana geldiği görülmüştür. ABSTRACTIn this study, the ballistic performances of particle-free Al sandwich foams (ASK) containing SiC, B4C and Al2O3 prepared by powder metallurgy were investigated. For this purpose, the mixture powders were subjected to extrusion milling after cold pressing and sandwich foams of 50x50x20 mm 2 were produced at 690 o C foaming temperature. Produced sandwich foams, 50x50x7 mm 2 dimensions of ramor 500 armor steel with silicon resin was glued and the armor samples were prepared for ballistic testing. In the study, it was determined that the particle diameter which is broken from the armor steel is less in the designs where the sandwich foams are leading. In addition, ballistic collisions resulted in localized condensation and petal damage in the sandwich foams.
Current paper focuses on RANS based turbulence analysis of NACA 6409 and Eppler 423. θ-Reθ SST was the RANS model that gave the most consistent results with the experimental data. CFD Simulation results of pressure and velocity fields at different angles of attack are clearly presented. CFD results with experimental data and XFoil are evaluated in terms of best glide ratio-(Cl/Cd)max and minimum sink-(Cl 1.5 /Cd)max criteria.
In order to take more stringent measures in fuel economy and achieve the determined performance targets, the automotive industry needs to reduce the weight of the vehicles it produces. For this reason, all automobile manufacturers have determined their own strategies. Some manufacturers use lighter aluminum, magnesium, and composite components in their cars. In this study, the joining techniques of lightweight materials such as welding and the processes of their industrial use have been examined. There is currently no single technology that can combine all metallic panels in a car body structure. However, it is known that various joining technologies are used together. With the potential to combine certain combinations of steel and aluminum, manufacturers and scientists continue to work to identify technologies with the highest potential for lightweight joining and put them into use in high-volume automobile production. Therefore, it is important to examine the weldability of light materials such as magnesium, titanium, and aluminum.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.