Fracture mechanical evaluation of a thin film scratch test by use of numerical contact analysis

Kenneth Holmberg, Anssi Laukkanen, Kim Wallin, Helena Ronkainen, Simo Varjus

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The systematic design and optimization of performance of coated surfaces suffers from lack of suitable procedures to carry out such an analysis. A tribological contact with two loaded surfaces in relative motion is a complex system requiring a general three-dimensional finite deformation and finite sliding contact analysis in order to succeed. Such analyses were carried out for a 2 m TiN coating on a tool steel substrate. The analyses were performed to simulate the whole scratch test and the results subjected to a fracture mechanical analysis. A methodology and a model for attaining fracture toughness directly using the cracking patterns of a scratch test and finite element analysis results is presented. The fracture mechanical model is verified by comparing the attained fracture toughness values to literature values.
    Original languageEnglish
    Title of host publicationProceed­ings of the 9th International Conference on the Mechanical Behaviour of Materials, ICM-9
    Number of pages8
    Publication statusPublished - 2003
    MoE publication typeA4 Article in a conference publication
    Event9th International Conference on the Mechanical Behavior of Materials, ICM-9 - Geneva, Switzerland
    Duration: 25 May 200329 May 2003

    Conference

    Conference9th International Conference on the Mechanical Behavior of Materials, ICM-9
    CountrySwitzerland
    CityGeneva
    Period25/05/0329/05/03

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    Keywords

    • hard coatings
    • FEM modelling
    • stress simulation
    • coating fracture
    • fracture toughness
    • ProperTune

    Cite this

    Holmberg, K., Laukkanen, A., Wallin, K., Ronkainen, H., & Varjus, S. (2003). Fracture mechanical evaluation of a thin film scratch test by use of numerical contact analysis. In Proceed­ings of the 9th International Conference on the Mechanical Behaviour of Materials, ICM-9 [P188]