NUMERICAL-SIMULATION OF EVOLUTION-INDUCED CATASTROPHE

Authors
LU CS KE FJ BAI YL XIA MF
Citation
Cs. Lu et al., NUMERICAL-SIMULATION OF EVOLUTION-INDUCED CATASTROPHE, Science in China. Series A, Mathematics, Physics, Astronomy & Technological Sciences, 38(4), 1995, pp. 462-471
Citations number
17
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Science in China. Series A, Mathematics, Physics, Astronomy & Technological Sciences → ACNP
ISSN journal
10016511
Volume
38
Issue
4
Year of publication
1995
Pages
462 - 471
Database
ISI
SICI code
1001-6511(1995)38:4<462:NOEC>2.0.ZU;2-E
Abstract
A numerical simulation of damage evolution in a two-dimensional system of micocracks is presented. It reveals that the failure is induced by a cascade of coalescences of microcracks, and the fracture surface ap pears fractal. A model of evolution-induced catastrophe is introduced. The fractal dimension is found to be a function of evolution rule onl y. This result could qualitatively explain the correlation of fractal dimension and fracture toughness discovered in experiments.