کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8057369 | 1520055 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Elastic buckling and free vibration analyses of porous-cellular plates with uniform and non-uniform porosity distributions
ترجمه فارسی عنوان
لرزش الاستیک و ارتعاش آزاد تجزیه و تحلیل صفحات متخلخل سلولی با توزیع تخلخل یکنواخت و غیر یکنواخت
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کلمات کلیدی
صفحه سلولی متخلخل تخلخل، لرزش الاستیک ارتعاش آزاد، تئوری صفحات تغییر شکل برش اولویت، راه حل تحلیلی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی هوافضا
چکیده انگلیسی
The aim of this research paper is to present the elastic buckling and free vibration analyses of porous-cellular plates based on the first-order shear deformation theory (FSDT). In the porous-cellular plate model, porosities are dispersed by uniform and non-uniform (symmetric and asymmetric) distribution patterns. The material properties, such as Young's modulus and mass density of the porous-cellular plates are assumed to vary along the thickness direction in term of porosity coefficient. First, the dynamic version of Hamilton's principle is applied to derive the Euler-Lagrange equations. Then, in the case of simply supported boundary condition, the critical buckling load and natural frequency of the porous-cellular plates are obtained using the Navier procedure. Furthermore, the reliability of the current formulation is validated by several examples. Finally, a comprehensive examination into the influence of porosity coefficient, porosity distributions, and the geometric parameters on the buckling behavior and vibration response of the porous-cellular plates are performed. Numerical results indicate that the effect of porosity distributions on the structural performance and provide the useful insights into the porosity design to achieve appropriately natural frequency and buckling resistance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 79, August 2018, Pages 278-287
Journal: Aerospace Science and Technology - Volume 79, August 2018, Pages 278-287
نویسندگان
Pham Toan Thang, T. Nguyen-Thoi, Dongkyu Lee, Joowon Kang, Jaehong Lee,