eprintid: 1961
rev_number: 6
eprint_status: archive
userid: 56
dir: disk0/00/00/19/61
datestamp: 2013-11-28 14:15:28
lastmod: 2014-10-09 09:20:25
status_changed: 2013-11-28 14:15:28
type: article
metadata_visibility: show
creators_name: Carpinteri, Alberto
creators_name: Paggi, Marco
creators_id: 
creators_id: marco.paggi@imtlucca.it
title: Numerical analysis of fracture mechanisms and failure modes in bi-layered structural components
ispublished: pub
subjects: TJ
divisions: CSA
full_text_status: none
keywords: Linear elastic fracture mechanics; Bi-layered structural components; Fracture mechanisms; Failure modes; Thermo-elastic and residual stresses
abstract: The problem of crack propagation in bi-layered structural components is addressed. Due to the presence of the bi-material interface and depending on the loading direction, a competition between different crack trajectories (failure modes) can take place. The quantification of the dominant failure mode and of the prevailing fracture mechanism is very often a challenging task, although it is crucial for design purposes. In this contribution, starting from the experimental observation of failure modes in a variety of engineering applications involving bi-layered structural components, an interpretation is proposed in the framework of the finite elements discretization and linear elastic fracture mechanics. The effect of thermo-elastic and residual stresses on the stability of crack propagation is carefully examined. Numerical results confirm the qualitative experimental observations of failure modes in bi-layered structural elements used for rock drilling applications. 
date: 2007
date_type: published
publication: Finite Elements in Analysis and Design
volume: 43
number: 11–12
publisher: Elsevier
pagerange: 941 - 953
id_number: 10.1016/j.finel.2007.06.003
refereed: TRUE
issn: 0168-874X
official_url: http://www.sciencedirect.com/science/article/pii/S0168874X07000716
citation:   Carpinteri, Alberto and Paggi, Marco  Numerical analysis of fracture mechanisms and failure modes in bi-layered structural components.  Finite Elements in Analysis and Design, 43 (11–12).  941 - 953.  ISSN 0168-874X      (2007)