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
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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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
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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