کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
253192 502988 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear dynamic buckling of functionally graded cylindrical shells subjected to time-dependent axial load
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Nonlinear dynamic buckling of functionally graded cylindrical shells subjected to time-dependent axial load
چکیده انگلیسی

This paper is presented to solve the nonlinear dynamic buckling problem of a new type of composite cylindrical shells, made of ceram/metal functionally graded materials. The material properties vary smoothly through the shell thickness according to a power law distribution of the volume fraction of the constituent materials. The dynamic axial load is set in a linear increase form with regard to time. By taking the temperature-dependent material properties into account, the effect of environmental temperature rise is included. The nonlinear dynamic equilibrium equation of the shell was obtained by applying an energy method, and was then solved using the four-order Runge–Kutta method. The critical condition was eventually determined using B-R dynamic buckling criterion. Numerical results show the dynamic buckling load is higher than its static counterpart. Meanwhile, various effects of the inhomogeneous parameter, loading speed, dimension parameter, environmental temperature rise and initial geometrical imperfection on nonlinear dynamic buckling are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 92, Issue 2, January 2010, Pages 593–598
نویسندگان
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