UP - logo
VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Tensile properties of mineral fibers determined with Sentmanat extensional rheometer
    Oseli, Alen ...
    Within the presented research, we utilized a non-standard technique, i.e. Sentmanat Extensional Rheometer (shorter SER-tool), which can potentially provide tensile measurements (i.e. tensile strength ... and Young's modulus) on relatively short and brittle fibrous materials such as slag mineral fibers. For easier transportation and fastening of the fibers, physical model of SER-tool was slightly modified. Consequently, modified technique was theoretically (through parametric error analysis) and experimentally (through mechanical characterization) evaluated on four different types of mineral fibers. Despite a fair, yet distinguishable scatter of tensile strength which cannot be theoretically evaluated due to size effect (related to thermo-mechanical histories), fiber's weakest link (related to fiber defects), etc., mechanical response, which is universally presented by Young's modulus, was reproducible. Parametrical error analysis, which determines the accuracy of modified SER-tool showed that the large part of the error arises from the combination of fiber diameter and error in fiber diameter, however by careful selection of fibers (related to the magnitude of the diameter and its error) the result remains within the predicted ranges. From the results different types of mechanical responses can be observed, which is related to ceramic content, i.e. SiO2+Al2O3, within the slag fiber. Utilized technique demonstrates the high performance and the capability of modified SER-tool to perform various studies, investigating the effects of thermo-mechanical histories, chemical composition and other parameters on mechanical properties of single fiber filaments.
    Vir: Construction & building materials. - ISSN 0950-0618 (Vol. 253, 2020, str. 1-12)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2020
    Jezik - angleški
    COBISS.SI-ID - 13922563

    Povezava(-e):

    https://www.sciencedirect.com/science/article/abs/pii/S0950061820312204#!
    Repozitorij Univerze v Ljubljani – RUL
    DOI

Vnos na polico