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  • Failure susceptibility in thin films with extensive incompatibility in thermo-elastic material properties
    Dobovšek, Igor
    We discuss the impact of residual stresses, caused by variation in external temperature field due to mismatch in thermal and elastic material properties in dissimilar two-phase system composed of a ... thin film and a flexible substrate, on failure behavior of the system. In the process of modeling, are presentative volume element of the system is defined as a heterogeneous two-phase layered element bonded at an interface in a sense of coherent bi-layer with classical interface conditions, which can be described as a sharp interface. We use a spatial averaging technique in transversal direction of the element with particular form of strain field that satisfies compatibility equations in the bulk and at the interface. With developed methodology we are able to determine residual stress distribution through thickness of the representative volume element. With known distribution of the stress field,we formulate a corresponding failure criterion in the form of characteristic failure surfaces.
    Vir: Advances in fracture and damage mechanics XIV : selected, peer reviewed papers from the 14th International Conference on Fracture and Damage Mechanics (FDM 2015), September 21-23, 2015, Budva, Montenegro (Str. 225-228)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2016
    Jezik - angleški
    COBISS.SI-ID - 17469017

    Povezava(-e):

    http://www.scientific.net/KEM.665.225

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