کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
268945 504452 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
3D-curved beam element with varying cross-sectional area under generalized loads
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
3D-curved beam element with varying cross-sectional area under generalized loads
چکیده انگلیسی

This article deals with the stiffness matrix and the equivalent load vector of a 3D-curved beam element with a variable cross-section under generalized loads. The linear ordinary differential system equation governing its structural behaviour is presented, and the boundary value problem is solved by the application of a recurrence scheme obtained by relating the internal forces and deformation at the two end points of an increase in the centroid line. This solution has a transfer matrix structure. Both the stiffness matrix and the equivalent load vector are obtained arranging the transfer matrix. The calculation method used was compared with other methods in the literature and the exact values demonstrated by means of four examples: a straight cantilever beam with a variable rectangular cross-section, a bi-fixed circular arch, a variable cross-section circular helix and a parabolic arch.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 30, Issue 2, February 2008, Pages 404–411
نویسندگان
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