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Microplastic Limit of Steels as a Means of Fatigue Limit Determination

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F13%3A43920446" target="_blank" >RIV/49777513:23210/13:43920446 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378297:_____/13:00424988

  • Result on the web

    <a href="https://www.researchgate.net/publication/273531670_Microplastic_Limit_of_Steels_as_a_Means_of_Fatigue_Limit_Determination" target="_blank" >https://www.researchgate.net/publication/273531670_Microplastic_Limit_of_Steels_as_a_Means_of_Fatigue_Limit_Determination</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.proeng.2013.12.115" target="_blank" >10.1016/j.proeng.2013.12.115</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Microplastic Limit of Steels as a Means of Fatigue Limit Determination

  • Original language description

    The experimental determination of fatigue limit in case of steels represents an expensive and time consuming process not speaking about the necessity of a sufficient volume of representative material necessary for the specimens manufacturing, manufacturing of numerous test specimens, the need of an expensive (electrohydraulic) test equipment etc. Microplastic strains occurring at stresses below the yield point play a significant role at cyclic loading of metals withinin high cycle fatigue region. The microplastic strains cannot be measured by common methods due to the discontinuity of their distribution and a varying character of their level in the metal structure, but however, owing to the magnetoelastic effect the threshold stress at which dislocation pile-up stresses begin to obstruct the magnetic domains in rotation to the direction of the tensile stress can be determined by means of changes in magnetic permeability during tensile loading. In the paper, the changes of the magnetic permeability were measured indirectly ? by means of the changes of the electrical impedance (a.c. resistance). The measurement was performed on the normalized low-carbon structural steel CSN 41 1375. The microplastic limit was determined by evaluation the ?R-? records. A comparison with the fatigue limit in a reversed fatigue loading showed that the MPL was below the fatigue limit. The microplastic limit can thus be considered to separate non-damaging and damaging cyclic stresses. The paper presents the results of the abovementioned characteristics what may shorten and make cheeper the determination of the fatigue limit and non-damaging cyclic stresses of structural materials.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20301 - Mechanical engineering

Result continuities

  • Project

    <a href="/en/project/GAP105%2F10%2F2052" target="_blank" >GAP105/10/2052: Damaging stresses below the fatigue limit as determined by changes in magnetic permeability</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2013

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    FATIGUE DESIGN 2013, INTERNATIONAL CONFERENCE PROCEEDINGS

  • ISBN

  • ISSN

    1877-7058

  • e-ISSN

    neuvedeno

  • Number of pages

    8

  • Pages from-to

    635-642

  • Publisher name

    Elsevier Science BV

  • Place of publication

    Amsterdam

  • Event location

    Cetim, Senlis, FRANCE

  • Event date

    Nov 27, 2013

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000338327000060