QUT ePrints

Computational approach to localization using global energy minimization

Chen, G., Baker, G., & Hunt, G.W. (2000) Computational approach to localization using global energy minimization. Computers & Structures, 78(4), pp. 529-536.

View at publisher

Abstract

Damage localization induced by strain softening can be predicted by the direct minimization of a global energy function. This article concerns the computational strategy for implementing this principle for softening materials such as concrete. Instead of using heuristic global optimization techniques, our strategies are a hybrid of local optimization methods with a path-finding approach to ensure a global optimum. With admissible nodal displacements being independent variables, it is easy to deal with the geometric (mesh) constraint conditions. The direct search optimization methods recover the localized solutions for a range of softening lattice models which are representative of quasi-brittle structures

Impact and interest:

6 citations in Scopus
Search Google Scholar™
6 citations in Web of Science®

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 28170
Item Type: Journal Article
Keywords: cracks, fracture mechanics, minimisation, structural engineering computing
DOI: 10.1016/S0045-7949(00)00043-2
ISSN: 0045-7949
Divisions: Past > Institutes > Institute for Creative Industries and Innovation
Copyright Owner: Copyright 2000 Elsevier
Deposited On: 23 Oct 2009 11:28
Last Modified: 11 Aug 2011 00:49

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page