@article{eprints1961,
         journal = {Finite Elements in Analysis and Design},
       publisher = {Elsevier},
          author = {Alberto Carpinteri and Marco Paggi},
           title = {Numerical analysis of fracture mechanisms and failure modes in bi-layered structural components},
            year = {2007},
          volume = {43},
           pages = {941 -- 953},
          number = {11?12},
        keywords = {Linear elastic fracture mechanics; Bi-layered structural components; Fracture mechanisms; Failure modes; Thermo-elastic and residual stresses},
             url = {http://eprints.imtlucca.it/1961/},
        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. }
}