Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions
This study investigates the sensitivity of dynamic properties in coupled curved beams reinforced with carbon nanotubes (CNTs) to thermal variations. Temperature-dependent (TD) mechanical properties are considered for poly methyl methacrylate (PMMA) to be strengthened with single-walled CNTs (SWCNTs)...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/2/687 |
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| author | Amir R. Masoodi Moein Alreza Ghandehari Francesco Tornabene Rossana Dimitri |
| author_facet | Amir R. Masoodi Moein Alreza Ghandehari Francesco Tornabene Rossana Dimitri |
| author_sort | Amir R. Masoodi |
| collection | DOAJ |
| description | This study investigates the sensitivity of dynamic properties in coupled curved beams reinforced with carbon nanotubes (CNTs) to thermal variations. Temperature-dependent (TD) mechanical properties are considered for poly methyl methacrylate (PMMA) to be strengthened with single-walled CNTs (SWCNTs), employing the basic rule of mixture to define the equivalent mechanical properties of nanocomposites. The governing equations of motion are derived using a first-order shear deformation theory (FSDT) and Hamilton’s principle, accounting for elastic interfaces modeled using elastic springs. A meshfree solution method based on a generalized differential quadrature (GDQ) approach is employed to discretize the eigenvalue problem and to obtain the frequency response of the structure. The proposed numerical procedure’s accuracy is verified against predictions in the literature for homogeneous structural cases under a fixed environmental temperature. The systematic investigation assesses the impact of various geometric and material properties, including curvature, boundary conditions, interfacial stiffness, and CNT distribution patterns, on the vibrational behavior. |
| first_indexed | 2024-03-08T09:58:38Z |
| format | Article |
| id | doaj.art-3bfd6e3881114c1d816579fa734b303b |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-08T09:58:38Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-3bfd6e3881114c1d816579fa734b303b2024-01-29T13:43:42ZengMDPI AGApplied Sciences2076-34172024-01-0114268710.3390/app14020687Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal ConditionsAmir R. Masoodi0Moein Alreza Ghandehari1Francesco Tornabene2Rossana Dimitri3Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad 9177948974, IranDepartment of Civil Engineering, Ferdowsi University of Mashhad, Mashhad 9177948974, IranDepartment of Innovation Engineering, University of Salento, 73100 Lecce, ItalyDepartment of Innovation Engineering, University of Salento, 73100 Lecce, ItalyThis study investigates the sensitivity of dynamic properties in coupled curved beams reinforced with carbon nanotubes (CNTs) to thermal variations. Temperature-dependent (TD) mechanical properties are considered for poly methyl methacrylate (PMMA) to be strengthened with single-walled CNTs (SWCNTs), employing the basic rule of mixture to define the equivalent mechanical properties of nanocomposites. The governing equations of motion are derived using a first-order shear deformation theory (FSDT) and Hamilton’s principle, accounting for elastic interfaces modeled using elastic springs. A meshfree solution method based on a generalized differential quadrature (GDQ) approach is employed to discretize the eigenvalue problem and to obtain the frequency response of the structure. The proposed numerical procedure’s accuracy is verified against predictions in the literature for homogeneous structural cases under a fixed environmental temperature. The systematic investigation assesses the impact of various geometric and material properties, including curvature, boundary conditions, interfacial stiffness, and CNT distribution patterns, on the vibrational behavior.https://www.mdpi.com/2076-3417/14/2/687natural frequencycoupled curved beamsingle-walled carbon nanotube (SWCNT)interface elastic mediaGDQ |
| spellingShingle | Amir R. Masoodi Moein Alreza Ghandehari Francesco Tornabene Rossana Dimitri Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions Applied Sciences natural frequency coupled curved beam single-walled carbon nanotube (SWCNT) interface elastic media GDQ |
| title | Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions |
| title_full | Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions |
| title_fullStr | Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions |
| title_full_unstemmed | Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions |
| title_short | Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions |
| title_sort | natural frequency response of fg cnt coupled curved beams in thermal conditions |
| topic | natural frequency coupled curved beam single-walled carbon nanotube (SWCNT) interface elastic media GDQ |
| url | https://www.mdpi.com/2076-3417/14/2/687 |
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