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  • Quantifying the mechanical properties of materials and the process of elastic-plastic deformation under external stress on material

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    Version of Record (VoR)
    Author(s)
    Valicek, Jan
    Harnicarova, Marta
    Oechsner, Andreas
    Hutyrova, Zuzana
    Kusnerova, Milena
    Tozan, Hakan
    Michenka, Vit
    Sepelak, Vladimir
    Mital, Dusan
    Zajac, Jozef
    Griffith University Author(s)
    Oechsner, Andreas
    Year published
    2015
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    Abstract
    The paper solves the problem of the nonexistence of a new method for calculation of dynamics of stress-deformation states of deformation tool-material systems including the construction of stress-strain diagrams. The presented solution focuses on explaining the mechanical behavior of materials after cutting by abrasive waterjet technology (AWJ), especially from the point of view of generated surface topography. AWJ is a flexible tool accurately responding to the mechanical resistance of the material according to the accurately determined shape and roughness of machined surfaces. From the surface topography, it is possible ...
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    The paper solves the problem of the nonexistence of a new method for calculation of dynamics of stress-deformation states of deformation tool-material systems including the construction of stress-strain diagrams. The presented solution focuses on explaining the mechanical behavior of materials after cutting by abrasive waterjet technology (AWJ), especially from the point of view of generated surface topography. AWJ is a flexible tool accurately responding to the mechanical resistance of the material according to the accurately determined shape and roughness of machined surfaces. From the surface topography, it is possible to resolve the transition from ideally elastic to quasi-elastic and plastic stress-strain states. For detecting the surface structure, an optical profilometer was used. Based on the analysis of experimental measurements and the results of analytical studies, a mathematical-physical model was created and an exact method of acquiring the equivalents of mechanical parameters from the topography of surfaces generated by abrasive waterjet cutting and external stress in general was determined. The results of the new approach to the construction of stress-strain diagrams are presented. The calculated values agreed very well with those obtained by a certified laboratory VÚHŽ.
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    Journal Title
    Materials
    Volume
    8
    Issue
    11
    DOI
    https://doi.org/10.3390/ma8115385
    Copyright Statement
    © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
    Subject
    Materials Engineering not elsewhere classified
    Chemical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/101716
    Collection
    • Journal articles

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