Improved DDA method based on explicitly solving contact constraints
type: Item
instance of: scholarly article
title: Improved DDA method based on explicitly solving contact constraints
zbMATH Open document ID: 1400.74085
DOI: 10.1155/2016/9452175
author: Jian Zhao
author: Ming Xiao
author: Juntao Chen
author: Dongdong Li
published in: Mathematical Problems in Engineering
publication date: 2018-10-12T00:00:00Z
review text: Summary: This paper proposes an improved DDA method based on explicitly solving contact constraints. The potential energy function generated by contacting, which contains only displacement variables as an unknown, is deduced based on the approximated step function and Lagrange interpolation, and the displacement variables and contact constraints are obtained via the variable metric method by analyzing the potential energy extremum. There is no need to conduct the open-close iteration during the process of calculation. The improved DDA method based on explicitly solving contact constraints has high precision and a more stable and more robust computational convergence. The accuracy and iterative stability of the improved DDA method are verified using two numerical examples.
Mathematics Subject Classification ID: 74M15
Mathematics Subject Classification ID: 74S30
zbMATH DE Number: 6953791
Wikidata QID: Q59141075
describes a project that uses: DDSCAT
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2016/9452175
OpenAlex ID: W2538845335
cites work: Review of validation of the discontinuous deformation analysis (DDA) method
cites work: Development of contact algorithm for three-dimensional numerical manifold method
cites work: Discontinuous deformation analysis based on complementary theory
cites work: On the constraint function method for contact problems
description: scientific article; zbMATH DE number 6953791