کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5488854 1399586 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecular dynamics study of the shear strength and fracture behavior of nanoporous graphene membranes
ترجمه فارسی عنوان
مطالعه دینامیک مولکولی مقاومت برشی و رفتار شکستگی غشاهای گرافنی نانوپور
کلمات کلیدی
گرافن، نانوذرات، مقاومت برشی،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
We perform molecular dynamics (MD) simulations to study the structural response and fracture characteristics of nanoporous graphene (NPG) membranes subjected to shear loading. The effects of porosity, temperature, and shear velocity on the mechanical responses of NPG membranes are examined. The results show that the wrinkling of the membrane becomes more obvious with increasing strain. Fractures occur around holes on the long diagonal of the NPG parallelogram, and fracture stress in the NPG membrane decreases with increasing porosity. In addition, the effect of shear velocity on the shear modulus decreases with increasing porosity. The fracture strain of NPG membranes with different porosities obviously decreases with increasing temperature. The results enhance our understanding of the shear mechanical properties of NPG membranes and are helpful for the design and application of high-performance NPG membranes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 17, Issue 10, October 2017, Pages 1323-1328
نویسندگان
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