کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
511261 865830 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A Galerkin least-square stabilisation technique for hyperelastic biphasic soft tissue
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A Galerkin least-square stabilisation technique for hyperelastic biphasic soft tissue
چکیده انگلیسی

An hyperelastic biphasic model is presented. For slow-draining problems (permeability less than 1 × 10−2 mm4 N−1 s−1), numerical instabilities in the form of non-physical oscillations in the pressure field are observed in 3D problems using tetrahedral Taylor–Hood finite elements. As an alternative to considerable mesh refinement, a Galerkin least-square stabilisation framework is proposed. This technique drastically reduces the pressure discrepancies and prevents these oscillations from propagating towards the centre of the medium. The performance and robustness of this technique are demonstrated on a 3D numerical example.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 118, March 2013, Pages 109–114
نویسندگان
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