کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
254277 503057 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic stability analysis of FGM plates by the moving least squares differential quadrature method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Dynamic stability analysis of FGM plates by the moving least squares differential quadrature method
چکیده انگلیسی

The present paper investigates the dynamic stability of thick functionally graded material plates subjected to aero-thermo-mechanical loads, using a novel numerical solution technique, the moving least squares differential quadrature method. Temperature field is assumed to be a uniform distribution over the plate plane, and varied in the thickness direction only. Material properties are assumed to be temperature dependent and graded in the thickness direction in the simple power law manner. The equilibrium equations governing the dynamic stability of the plate are derived by the Hamilton’s principle, then these equations are discretized by the moving least squares differential quadrature method. The boundaries of the instability region are obtained using the principle of Bolotin’s method and are conveniently represented in the non-dimensional excitation frequency to load amplitude plane. The influence of various factors such as gradient index, temperature, mechanical and aerodynamic loads, thickness and aspect ratios, as well as the boundary conditions on the dynamic instability region are carefully studied.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 77, Issue 3, February 2007, Pages 383–394
نویسندگان
, , ,