کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
511779 865910 2009 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cutoff wave numbers for energy-orthogonal six-node triangular plane-strain elements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Cutoff wave numbers for energy-orthogonal six-node triangular plane-strain elements
چکیده انگلیسی

This paper studies the propagation of plane harmonic waves in unbounded media discretized by the standard six-node triangular finite element. The element stiffness matrix is split into basic and higher order components which are obtained from mean and deviatoric strain fields, respectively. This decomposition is applied to the elastic energy. Based on the properties of the higher order energy, two values of the wave number are selected. Depending on the desired precision one of those values can be used as optimum cutoff wave number to properly capture a wave field.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 87, Issues 7–8, April 2009, Pages 395–406
نویسندگان
,