Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular Core
This research explores the dynamic characteristics of composite nano-beams with a hybrid cellular structure (HCS) core, composed of two segments with distinct unit cell configurations, and face sheets reinforced with carbon nanotube (CNT) composites. By considering three-layered sandwich beams with...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Vibration |
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| Online Access: | https://www.mdpi.com/2571-631X/8/2/14 |
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| author | Mohammad Javad Khoshgoftar Pejman Mehdianfar Yasin Shabani Mahdi Shaban Hamed Kalhori |
| author_facet | Mohammad Javad Khoshgoftar Pejman Mehdianfar Yasin Shabani Mahdi Shaban Hamed Kalhori |
| author_sort | Mohammad Javad Khoshgoftar |
| collection | DOAJ |
| description | This research explores the dynamic characteristics of composite nano-beams with a hybrid cellular structure (HCS) core, composed of two segments with distinct unit cell configurations, and face sheets reinforced with carbon nanotube (CNT) composites. By considering three-layered sandwich beams with aluminum cores of varying unit cell angles, the study explores a broad spectrum of achievable Poisson’s ratios. The top and bottom face sheets incorporate CNTs, distributed either uniformly or in a functionally graded manner. The governing equations are derived using Eringen’s nonlocal elasticity framework and the modified theory of shear deformation, with solutions obtained via the Galerkin method. A detailed parametric analysis is conducted to evaluate the effects of CNT content, arrangement configurations, hybrid core cellular angles, nonlocal parameters, and slenderness ratio (L/h) on the dimensionless natural frequencies of sandwich nanobeams with hybrid cellular cores. A key contribution of this study is the presentation of natural frequencies for nanobeams with hybrid cellular cores and composite face sheets reinforced with functionally graded CNTs, derived from advanced theoretical formulations. These findings offer new insights into design optimization and highlight the potential applications of hybrid cellular sandwich nanobeams in cutting-edge engineering systems. |
| format | Article |
| id | doaj-art-2e46f4eedff94bb4b2a59a1f5ff9dc5c |
| institution | OA Journals |
| issn | 2571-631X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Vibration |
| spelling | doaj-art-2e46f4eedff94bb4b2a59a1f5ff9dc5c2025-08-20T02:21:52ZengMDPI AGVibration2571-631X2025-03-01821410.3390/vibration8020014Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular CoreMohammad Javad Khoshgoftar0Pejman Mehdianfar1Yasin Shabani2Mahdi Shaban3Hamed Kalhori4Department of Mechanical Engineering, Faculty of Engineering, Arak University, Arak 38156-88349, IranDepartment of Mechanical Engineering, Faculty of Engineering, Arak University, Arak 38156-88349, IranDepartment of Mechanical Engineering, Faculty of Engineering, Arak University, Arak 38156-88349, IranDepartment of Mechanical Engineering, Faculty of Engineering, Bu-Ali Sina University, Hamedan 65178, IranDepartment of Mechanical Engineering, Faculty of Engineering, Bu-Ali Sina University, Hamedan 65178, IranThis research explores the dynamic characteristics of composite nano-beams with a hybrid cellular structure (HCS) core, composed of two segments with distinct unit cell configurations, and face sheets reinforced with carbon nanotube (CNT) composites. By considering three-layered sandwich beams with aluminum cores of varying unit cell angles, the study explores a broad spectrum of achievable Poisson’s ratios. The top and bottom face sheets incorporate CNTs, distributed either uniformly or in a functionally graded manner. The governing equations are derived using Eringen’s nonlocal elasticity framework and the modified theory of shear deformation, with solutions obtained via the Galerkin method. A detailed parametric analysis is conducted to evaluate the effects of CNT content, arrangement configurations, hybrid core cellular angles, nonlocal parameters, and slenderness ratio (L/h) on the dimensionless natural frequencies of sandwich nanobeams with hybrid cellular cores. A key contribution of this study is the presentation of natural frequencies for nanobeams with hybrid cellular cores and composite face sheets reinforced with functionally graded CNTs, derived from advanced theoretical formulations. These findings offer new insights into design optimization and highlight the potential applications of hybrid cellular sandwich nanobeams in cutting-edge engineering systems.https://www.mdpi.com/2571-631X/8/2/14carbon nanotubescellular structurescomputational analysismechanical characterizationsize dependence |
| spellingShingle | Mohammad Javad Khoshgoftar Pejman Mehdianfar Yasin Shabani Mahdi Shaban Hamed Kalhori Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular Core Vibration carbon nanotubes cellular structures computational analysis mechanical characterization size dependence |
| title | Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular Core |
| title_full | Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular Core |
| title_fullStr | Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular Core |
| title_full_unstemmed | Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular Core |
| title_short | Vibration Characteristics of Carbon Nanotube-Reinforced Sandwich Nanobeams with Hybrid Cellular Core |
| title_sort | vibration characteristics of carbon nanotube reinforced sandwich nanobeams with hybrid cellular core |
| topic | carbon nanotubes cellular structures computational analysis mechanical characterization size dependence |
| url | https://www.mdpi.com/2571-631X/8/2/14 |
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