Nonlinear Free Flexural Vibration of Curvilinear Fibre Composite Laminates Using a Higher-Order Element
| العنوان: | Nonlinear Free Flexural Vibration of Curvilinear Fibre Composite Laminates Using a Higher-Order Element |
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| المؤلفون: | Anand Venkatachari, M. Ganapathi, Mohamed Haboussi, Arun Tom Mathew |
| المصدر: | International Journal of Structural Stability and Dynamics. 18:1850147 |
| بيانات النشر: | World Scientific Pub Co Pte Ltd, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Curvilinear coordinates, Work (thermodynamics), Materials science, Quadrilateral, Applied Mathematics, Mechanical Engineering, Aerospace Engineering, Ocean Engineering, 02 engineering and technology, Building and Construction, Composite laminates, 021001 nanoscience & nanotechnology, Shear (sheet metal), Nonlinear system, 020303 mechanical engineering & transports, 0203 mechanical engineering, Fiber, Flexural vibration, Composite material, 0210 nano-technology, Civil and Structural Engineering |
| الوصف: | In the present work, the nonlinear free flexural vibration of thick curvilinear fiber composite laminates is investigated using a higher-order shear flexible eight-noded quadrilateral element developed considering the variation of in-plane and transverse displacement through the thickness. The formulation includes both the geometric nonlinearity and inertia effects. The governing equations, derived based on Lagrange’s equations of motion, are solved iteratively through an eigenvalue approach. The formulation is tested against various problems for which the solutions are available in the literature. A detailed analysis is made to assess the influence of fiber angles, lamination schemes, boundary conditions, thickness, and aspect ratios on the nonlinear frequency ratio at large amplitude vibrations of the laminates. A comparative study is also done along with the first-order and simple higher-order theory deduced from the present model by neglecting the thickness stretching effects. The present analysis shows the degree of hardening behavior getting affected noticeably compared to those of the traditional straight fibers, thus exhibiting the occurrence of drop off in frequency ratio and redistribution of mode shapes at certain amplitudes of vibration. |
| تدمد: | 1793-6764 0219-4554 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::1176f8e9448dea92511c82a0a770596a https://doi.org/10.1142/s021945541850147x |
| رقم الأكسشن: | edsair.doi...........1176f8e9448dea92511c82a0a770596a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17936764 02194554 |
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