کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9668167 | 865957 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Boundary conditions for a dual particle method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We present a meshfree particle method suitable for computation of the dynamic response of materials. The method employs two sets of Lagrange particles: one carrying position and velocity (motion particles) and the other carrying field (stress particles). A stability analysis shows the method to be stable, even under deformation and when the connectivity is changing. This provides hope that large deformations can be computed in a Lagrange frame. Important aspects of the method include: (1) linear moving least squares (MLS) derivative estimates, (2) a unified boundary treatment based on constrained linear MLS fits, (3) a conceptually simple neighbor search that handles large anisotropy in the particle spacing, and most importantly, (4) stability with deformation and changing connectivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 83, Issues 17â18, June 2005, Pages 1476-1486
Journal: Computers & Structures - Volume 83, Issues 17â18, June 2005, Pages 1476-1486
نویسندگان
P.W. Randles, L.D. Libersky,