کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
512036 866382 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Displacement and equilibrium mesh-free formulation based on integrated radial basis functions for dual yield design
ترجمه فارسی عنوان
فرمولاسیون جابجایی و تعادل بدون مش با استفاده از توابع پایه یکپارچه برای طراحی دوگانه
کلمات کلیدی
تجزیه و تحلیل محدود، طراحی عملکرد، یکپارچه عملکرد پایه شعاعی، روش بدون مش برنامه دوم مخروط نظم،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
This paper presents displacement and equilibrium mesh-free formulation based on integrated radial basis functions (iRBF) for upper and lower bound yield design problems. In these approaches, displacement and stress fields are approximated by the integrated radial basis functions, and the equilibrium equations and boundary conditions are imposed directly at the collocation points. In this paper it has been shown that direct nodal integration of the iRBF approximation can prevent volumetric locking in the kinematic formulation, and instability problems can also be avoided. Moreover, with the use of the collocation method in the static problem, equilibrium equations and yield conditions only need to be enforced at the nodes, leading to the reduction in computational cost. The mean value of the approximated upper and lower bound is found to be in excellent agreement with the available analytical solution, and can be considered as the actual collapse load multiplier for most practical engineering problems, for which exact solution is unknown.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Analysis with Boundary Elements - Volume 71, October 2016, Pages 92-100
نویسندگان
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