کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6915568 1447402 2018 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Time domain boundary elements for dynamic contact problems
ترجمه فارسی عنوان
عناصر مرزی دامنه زمانی برای مشکلات تماس پویا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
This article considers a unilateral contact problem for the wave equation. The problem is reduced to a variational inequality for the Dirichlet-to-Neumann operator for the wave equation on the boundary, which is solved in a saddle point formulation using boundary elements in the time domain. As a model problem, also a variational inequality for the single layer operator is considered. A priori estimates are obtained for Galerkin approximations both to the variational inequality and the mixed formulation in the case of a flat contact area, where the existence of solutions to the continuous problem is known. Numerical experiments demonstrate the performance of the proposed mixed method. They indicate the stability and convergence beyond flat geometries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 333, 1 May 2018, Pages 147-175
نویسندگان
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