Počet záznamů: 1

Crack propagation in the vicinity of the interface in layered materials

  1. 1.
    0337547 - UFM-A 2010 RIV CZ eng J - Článek v odborném periodiku
    Šestáková, Lucie - Náhlík, Luboš - Hutař, Pavel - Knésl, Zdeněk
    Crack propagation in the vicinity of the interface in layered materials.
    Applied and Computational Mechanics. Roč. 3, č. 1 (2009), s. 195-204 ISSN 1802-680X
    Grant CEP: GA AV ČR(CZ) KJB200410803; GA ČR GA106/09/0279
    Výzkumný záměr: CEZ:AV0Z20410507
    Klíčová slova: crack * bi-material interface * stability criteria * layered materials
    Kód oboru RIV: JL - Únava materiálu a lomová mechanika

    The paper deals with the problem of crack propagation in the vicinity of the interface in layered materials. The configuration of a crack with its tip at the bi-material in-terface can be created during crack propagation in the structure. It is important to decide if the crack propagates into the second material in this case. The step change of material properties at the bi-material interface means that classical linear elastic fracture mechanics are not appropriate. A generalized approach has to be applied. In this paper, two criteria are applied for the determination of the critical value of an applied load. Knowledge of these values is important for the estimation of the service life time of such structures.The results obtained can be used especially for multi-layer polymer composites designs. On the basis of the procedures presented, suitable materials combinations can be suggested for new composite structures.
    Trvalý link: http://hdl.handle.net/11104/0181515