کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6708531 | 502946 | 2014 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A trigonometric plate theory with 5-unknowns and stretching effect for advanced composite plates
ترجمه فارسی عنوان
تئوری صفحات مثلثاتی با اثرات 5 ناشناخته و کشش برای صفحات پیشرفته کامپوزیت
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کلمات کلیدی
تئوری تغییر شکل پذیری برشی بالاتر، تجزیه و تحلیل خم، مواد درجه بندی شده عملکردی، تئوری صفحات مثلثاتی، اثر کشش،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
A simple but accurate trigonometric plate theory (TPT) for the bending analysis of functionally graded single-layer and sandwich plates is presented. The significant feature of this formulation is that, in addition to including the thickness stretching effect, it deals with only 5 unknowns as the first order shear deformation theory (FSDT), instead of 6 as in the well-known TPT. The TPT possesses in-plane and transverse shear strain shape functions (sin(z/m) and cos(z/n)) containing the parameters “m” and “n” that should be properly selected. The governing equations and boundary conditions are derived by employing the principle of virtual work. A Navier-type closed-form solution is obtained for functionally graded single-layer and sandwich plates subjected to bi-sinusoidal load for simply supported boundary conditions. Numerical results of the present TPT are compared with the FSDT, other quasi-3D higher order shear deformation theories (HSDTs), and 3D solutions. The important conclusions that emerge from the present numerical results suggest that: (a) for powerly graded plates the present TPT produces as good results as refined quasi-3D HSDTs, however (b) for exponentially graded plates the present TPT yields improved results; and (c) it is possible to gain accuracy keeping the unknowns' number constant but by selecting properly the parameter “m” and “n”.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 107, January 2014, Pages 396-405
Journal: Composite Structures - Volume 107, January 2014, Pages 396-405
نویسندگان
J.L. Mantari, C. Guedes Soares,