کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
497913 862950 2014 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
GPU accelerated computation of the isogeometric analysis stiffness matrix
ترجمه فارسی عنوان
پردازنده گرافیکی سرعت محاسبات ماتریس سختی آنالیز ایزوگومتریک را افزایش داد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی


• A novel approach, amenable to parallelization, is proposed for assembling the stiffness matrix.
• Processing power of GPUs is used to accelerate computations.
• The GPU implementation of the proposed approach manages to outperform the other approaches by orders of magnitude.

Due to high regularity across mesh elements, isogeometric analysis achieves higher accuracy per degree of freedom and improved spectrum properties, among others, compared with finite element analysis. However, this inherent feature of isogeometric analysis increases the density of the stiffness matrix and requires more elaborate numerical integration schemes for its computation. For these reasons, the assembly of the stiffness matrix in isogeometric analysis is a computationally demanding task, which needs special attention in order to be affordable for real-world applications. In this paper we address the computational efficiency of assembling the stiffness matrix using the standard element-wise Gaussian quadrature. A novel approach is proposed for the formulation of the stiffness matrix which exhibits several computational merits, among them its amenability to parallelization and the efficient utilization of the graphics processing units to drastically accelerate computations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 269, 1 February 2014, Pages 334–355
نویسندگان
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