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Statistical analysis of delamination effect on natural frequency of composite laminated plate | ||
| Mechanics of Advanced Composite Structures | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 27 فروردین 1404 اصل مقاله (1.44 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/macs.2025.36174.1776 | ||
| نویسندگان | ||
| Hossein Taghavian؛ Ahmad Reza Ghasemi* | ||
| University of Kashan | ||
| تاریخ دریافت: 17 آذر 1403، تاریخ بازنگری: 26 اسفند 1403، تاریخ پذیرش: 27 فروردین 1404 | ||
| چکیده | ||
| This study examines the free vibration behavior of composite laminated plates featuring various delaminated regions and stacking sequences. Utilizing the first-order shear deformation theory (FSDT) in combination with the finite element method, the natural frequencies of these plates are analyzed. Specifically, the investigation considers laminated plates with different numbers, sizes, and geometric arrangements of delaminated regions across several stacking sequences. The numerical results reveal notable trends in how natural frequencies vary and how delamination size affects them, highlighting a strong dependence on the stacking sequence of the layers. Furthermore, the findings demonstrate that the impact of multiple delaminated regions on the natural frequencies is less significant than the cumulative effect of these delaminations concentrated in a single location, with this discrepancy influenced by the frequency order and stacking configurations. Finally, based on the comparisons made, it can be concluded that the size of delaminated areas is more effective than their numbers and arrangements. | ||
| کلیدواژه‌ها | ||
| Laminated plate؛ Vibration characteristics؛ Delaminated regions؛ High risk zone ratio؛ Frequency shift | ||
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آمار تعداد مشاهده مقاله: 25 تعداد دریافت فایل اصل مقاله: 63 |
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