Numerical simulations of quasibrittle fracture processes using the discrete cohesive crack model

Authors
Citation
F. Tin-loi et H. Li, Numerical simulations of quasibrittle fracture processes using the discrete cohesive crack model, INT J MECH, 42(2), 2000, pp. 367-379
Citations number
16
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
ISSN journal
00207403 → ACNP
Volume
42
Issue
2
Year of publication
2000
Pages
367 - 379
Database
ISI
SICI code
0020-7403(200002)42:2<367:NSOQFP>2.0.ZU;2-H
Abstract
The analysis of quasibrittle fracture processes, described via Hillerborg's classical discrete cohesive model, is carried out within a direct (colloca tion) boundary element framework. Both holonomic (path-independent) and non holonomic (path-dependent) simulations are considered for a general class o f nonlinear softening laws. In particular, a simple numerical scheme, albei t one which requires some a priori knowledge of possible fracture activatio ns, is proposed for the analyses. The potentialities of the method are illu strated through two examples concerning the well-known three-point bending and two-notch tensile problems. (C) 1999 Elsevier Science Ltd. All rights r eserved.