| Application of SBFEM in Investigating the Defected Square Nano-Graphene Sheets |
| کد مقاله : 1190-ICME2025 |
| نویسندگان |
|
مهدی حاجیان *1، مهرداد هنرمند2، علیرضا حاجیان3 1گروه مهندسی مکانیک، دانشگاه ملی مهارت، تهران، ایران 2گروه مهندسی مکانیک، واحد تیران، دانشگاه آزاد اسلامی، تیران، ایران 3گروه فیزیک، واحد نجف آباد، دانشگاه آزاد اسلامی،نجف آباد، ایران |
| چکیده مقاله |
| In this article, using the scaled boundary finite element semi-analytical method, complete graphene nanosheets with simulated structural defects and its mechanical behavior were investigated. In this analysis, the atomic bond between carbon atoms was modeled with a rod with a circular cross section and then scaled boundary finite element relationships were projected based on the model geometry. The comparison of the results obtained from the scaled boundary finite element method with molecular dynamics showed that this analysis method can be used with high accuracy as a continuous medium method in the mechanical analysis of complete or structurally defective nanographene sheets. The existence of a structural defect significantly reduces the strength and strain of the nanographene sheet in such a way that the stress of breaking is reduced by more than 34% and the strain of breaking is reduced by more than 50%. Also, if instead of the rod element, the nanographene plate is considered a continuous medium plate, and in order to create a geometry identical to the problems with the rod element, the material-free medium is simulated with zero elastic modulus elements. The results will not have the same accuracy as the results with the bar element. |
| کلیدواژه ها |
| Scaled finite boundary element, square nano-graphene sheet, structural defects, mechanical behavior, molecular dynamics |
| وضعیت: پذیرفته شده برای ارائه شفاهی |
