کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8051955 1519378 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A self-adaptive projection method for contact problems with the BEM
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
A self-adaptive projection method for contact problems with the BEM
چکیده انگلیسی
A self-adaptive algorithm, based on the projection and boundary integral methods, is designed and analyzed for frictionless contact problems in linear elasticity. Using the equivalence between the contact problem and a variational formulation with a projection fixed point problem of infinite dimensions, we develop an iterative algorithm that formulates the contact boundary condition into a sequence of Robin boundary conditions. In order to improve the performance of the method, we propose a self-adaptive rule which updates the penalty parameter automatically. As the iteration process is given by the displacement and the stress on the boundary of the domain, the unknowns of the problem are computed explicitly by using the boundary element method. Both theoretical results and numerical experiments show that the method presented is efficient and robust.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 55, March 2018, Pages 145-159
نویسندگان
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