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.
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:
Citation counts are sourced monthly from and 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 theindexing service can be viewed at the linked Google Scholar™ search.
|Item Type:||Journal Article|
|Keywords:||cracks, fracture mechanics, minimisation, structural engineering computing|
|Divisions:||Past > Institutes > Institute for Creative Industries and Innovation|
|Copyright Owner:||Copyright 2000 Elsevier|
|Deposited On:||23 Oct 2009 01:28|
|Last Modified:||10 Aug 2011 14:49|
Repository Staff Only: item control page