Multilevel microstructure-sensitive model for nonlinear dynamic resonance of ternary CNF/SiC-PMMA composite microbeams under soft harmonic excitation
Artykuł w czasopiśmie
MNiSW
140
Lista 2024
| Status: | |
| Autorzy: | Sahmani Saeid, Postek Eligiusz, Ansari Reza, Abedi Kasra, Hassanzadeh-Aghdam Mohammad Kazem, Sadowski Tomasz |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2026 |
| Wersja dokumentu: | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 332 |
| Numer artykułu: | 108423 |
| Strony: | 1 - 24 |
| Impact Factor: | 5,6 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This research was funded by the Polish National Agency for Academic Exchange (NAWA) under grant No. BNI/ULM/2024/1/00088/U/00001. This work was supported (T.Sadowski) and funded under the grant “Subvention for Science” by the Ministry of Science and Higher Education of the Republic of Poland - project No. FD-20/IL-4/046 |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 11 września 2026 |
| Abstrakty: | angielski |
| The nonlinear primary resonant dynamics of ternary polymethyl methacrylate (PMMA) nanocomposite microbeams reinforced with carbon nanofibers (CNFs) and silicon carbide (SiC) nanoparticles are explored using a multiscale computational framework that combines a finite element-based micromechanical homogenization with size-dependent continuum modeling, thereby establishing a direct connection between the microscale material architecture and nonlinear dynamic performance. Accordingly, the roles of key nanoscale design parameters on the size-dependent nonlinear resonant behavior are systematically elucidated. Specifically, the influence of CNF volume fraction and aspect ratio, SiC nanoparticle volume fraction and diameter, interphase properties, and nanofiller dispersion are assessed to reveal their individual contributions to the resonant response. To achieve this objective, the effective elastic properties of the ternary nanocomposite are first extracted through a numerical homogenization of three-dimensional representative volume elements and subsequently incorporated into the modified strain gradient and classical continuum beam models for nonlinear dynamic analysis. It is deduced that increasing the CNF aspect ratio enhances the effective stiffness of the ternary nanocomposite, although the reinforcing effect gradually saturates at larger aspect ratios. In contrast, increasing the SiC nanoparticle diameter reduces the mechanical properties, shifting the resonance curves toward lower excitation frequencies and increasing peak vibration amplitudes. Also, it is observed that when the interphase modulus is lower than that of the PMMA matrix, the interphase acts as a compliant layer, limiting the effective transmission of stresses from the matrix to the reinforcing nanofibers. As the interphase modulus exceeds that of the polymer matrix, the stiffness mismatch between the CNFs and the surrounding medium decreases, leading to a significant improvement in load transfer efficiency and a noticeable reduction in the softening-type nonlinearity. |
