Title
A locking-free finite difference method on staggered grids for linear elasticity problems.
Abstract
A finite difference method on staggered grids is constructed on general nonuniform rectangular partition for linear elasticity problems. Stability, optimal-order error estimates in discrete H1-norms on general nonuniform grids and second-order superconvergence on almost uniform grids have been obtained. These theoretical results are uniform about the Lamé constant λ∈(0,∞) so the finite difference method is locking-free. The method and theoretical results can be extended to three dimensional problems. Numerical experiments using the method show agreement of the numerical results with theoretical analysis.
Year
DOI
Venue
2018
10.1016/j.camwa.2018.06.023
Computers & Mathematics with Applications
Keywords
Field
DocType
Linear elasticity,Locking-free,Staggered grids,Finite difference,Convergence and superconvergence
Mathematical analysis,Superconvergence,Finite difference method,Linear elasticity,Partition (number theory),Mathematics
Journal
Volume
Issue
ISSN
76
6
0898-1221
Citations 
PageRank 
References 
0
0.34
11
Authors
2
Name
Order
Citations
PageRank
Hongxing Rui119937.20
Ming Sun29116.25