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arXiv 1702.02701math.NAcs.NA
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后验误差估计与二维原子/连续体耦合的自适应算法

A Posteriori Error Estimation and Adaptive Algorithm for the Atomistic/Continuum Coupling in 2D

College of Mathematics, Sichuan University(四川大学数学学院);Department of Applied Mathematics and Mechanics, University of Science and Technology Beijing(北京科技大学应用数学与力学系);Department of Mathematics, University of Dundee(邓迪大学数学系);Institute of Natural Sciences, School of Mathematical Sciences, and Ministry of Education Key Laboratory of Scientific and Engineering Computing (MOE-LSC), Shanghai Jiao Tong University(上海交通大学数学科学学院、自然研究院及教育部科学与工程计算重点实验室)

Hao Wang, Mingjie Liao, Ping Lin, Lei Zhang

AI总结:

本文研究了二维原子/连续体耦合方法的后验误差分析与自适应算法,通过优化自由度收敛率提升计算效率。

摘要:

原子/连续体耦合方法旨在实现精度与效率的最佳平衡。适应性是此类方法高效实现的关键。本文对一致的二维原子/连续体耦合方法的残差、稳定性常数和误差界进行了严格的后验分析。我们设计并实现了相应的自适应网格细化算法,其相对于先验误差估计的收敛率是最佳的。

英文摘要:

Atomistic/continuum coupling methods aim to achieve optimal balance between accuracy and efficiency. Adaptivity is the key for the efficient implementation of such methods. In this paper, we carry out a rigorous a posteriori analysis of the residual, the stability constant, and the error bound, for a consistent atomistic/continuum coupling method in 2D. We design and implement the corresponding adaptive mesh refinement algorithm, and the convergence rate with respect to degrees of freedom is optimal compare with a priori error estimates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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