کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
269266 504464 2008 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Systematic prediction of yield-line configurations for arbitrary polygonal plates
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Systematic prediction of yield-line configurations for arbitrary polygonal plates
چکیده انگلیسی

In addition to the well-established finite element method in recent years several optimization approaches have been developed concerning the yield-line theory. This paper presents a new systematical algorithm to predict initial yield-line configurations of arbitrary polygonal plates. It contributes a solution to the task of detecting yield-line patterns in advance of an optimization process. For this reason a ciphering of yield-line patterns is proposed and a new application of Catalan numbers and binary trees is demonstrated. After a subsequent refining a triangular element is used in combination with a simplex optimization procedure in order to determine the ultimate load of the considered yield-line configuration. Moreover, further optimization strategies like the direct search method and the conjugate gradient method lead to the final solution of the problem. The use and the efficiency of the new approach are demonstrated with three examples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 30, Issue 7, July 2008, Pages 2081–2093
نویسندگان
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