نوع مقاله : مکانیک جامدات
نویسندگان
1 دانشگاه مراغه
2 علوم مهندسی، فناوری های نوین، محقق اردبیلی، نمین، ایران
3 گروه مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه مراغه، مراغه، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In order to investigate the buckling properties of metallic glass nanocomposites (MGNCs) with different compositions, the present study employs the recently introduced three-dimensional graphene networks, namely Hexagonal Graphene Network (HGN), Quadrilateral Graphene Network (QGN), and Triangular Graphene Network (TGN), as reinforcements. To do this, molecular dynamics (MD) simulations are used to find the critical forces and strains of reinforced MGNCs with up to five elements, such as Cu, Zr, Ag, Al, Ni, and Ti, with different amounts of each element. Moreover, the results of reinforced MGNCs are compared with those of pure metallic glasses (MGs). The numerical results show that two-element MGs with a higher Cu percentage have a higher critical force than other monolithic MGs. Two-element MGs with an equal percentage of Cu and Zr also have a higher critical strain. Moreover, as the number of elements in MG composition increases to more than two, the buckling properties marginally diminish. The obtained results reveal that all types of reinforcements significantly enhance the buckling characteristics of MGNCs. It is further observed that almost for the majority of MGNCs, the enhancement in the critical force and strain is more pronounced for HGN and QGN reinforcements, respectively.
کلیدواژهها [English]
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