relation: http://eprints.imtlucca.it/1961/
title: Numerical analysis of fracture mechanisms and failure modes in bi-layered structural components
creator: Carpinteri, Alberto
creator: Paggi, Marco
subject: TJ Mechanical engineering and machinery
description: 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. 
publisher: Elsevier
date: 2007
type: Article
type: PeerReviewed
identifier:   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)  
relation: http://www.sciencedirect.com/science/article/pii/S0168874X07000716
relation: 10.1016/j.finel.2007.06.003