کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
500036 863069 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A genetic algorithm applied to optimisation of patch repairs for cracked plates
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A genetic algorithm applied to optimisation of patch repairs for cracked plates
چکیده انگلیسی

The problem of the optimal shape of patch repairs for cracked plates is here examined by applying a biology-based method, known as the genetic algorithm. The optimum design procedure consists in evaluating the patch topology which maximises or minimises some mechanical properties of the repaired plate while keeping constant the total patched area (constrained optimisation problem). In the present paper, the best patch shape is determined by minimising the stress-intensity factor function (which is the adopted objective function). The proposed procedure is implemented in a finite element code, and some numerical simulations are carried out in order to assess the reliability of the method when applied to the case of a cracked plate under Mode I. For some configurations analysed, the stress-intensity factor can significantly be reduced by employing an optimal shape patch instead of a simple shape (square or rectangular) patch.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 196, Issues 1–3, 1 December 2006, Pages 466–475
نویسندگان
, , ,