TY  - JOUR
VL  - 43
JF  - Finite Elements in Analysis and Design
IS  - 11?12
Y1  - 2007///
SP  - 941 
A1  - Carpinteri, Alberto
A1  - Paggi, Marco
PB  - Elsevier
EP  -  953
ID  - eprints1961
UR  - http://www.sciencedirect.com/science/article/pii/S0168874X07000716
AV  - none
TI  - Numerical analysis of fracture mechanisms and failure modes in bi-layered structural components
KW  - Linear elastic fracture mechanics; Bi-layered structural components; Fracture mechanisms; Failure modes; Thermo-elastic and residual stresses
N2  - 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. 
SN  - 0168-874X
ER  -