کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
267064 504393 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
3D frictionless contact problems with large load-steps based on the covariant description for higher order approximation
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
3D frictionless contact problems with large load-steps based on the covariant description for higher order approximation
چکیده انگلیسی

Based on the consideration of contact from the surface geometry point of view using a covariant contact description in the local surface coordinate system a 3D extension of the so-called large penetration algorithm is presented. Within the Node-To-Surface (NTS) approach this scheme allows the computation with larger load increments than within a usual consistent linearization, see [2]. The required specific structure of the tangent matrix for this 3D scheme is found in a straightforward fashion using the covariant contact description. In order to show the efficiency of the scheme for further approaches like e.g. the Surface-To-Analytical-Surface (STAS) examples with contact, bending and sliding of shells modeled with elements of quadratic approximation, are presented. Furthermore a comparison regarding the efficiency for both considered approaches, NTS and STAS, is presented.


► Combining the covariant contact description with the large penetration algorithm.
► 3D extension enabled due to the specific structure of the derived tangent matrix.
► Testing for Node-To-Surface and Surface-To-Analytical-Surface approaches conducted.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 50, May 2013, Pages 107–114
نویسندگان
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