Fatigue behaviour of a short crack in a thin protective layer laser-cladded on a steel substrate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU142866" target="_blank" >RIV/00216305:26110/21:PU142866 - isvavai.cz</a>

Výsledek na webu

<a href="http://tces.vsb.cz/Home/ArticleDetail/818" target="_blank" >http://tces.vsb.cz/Home/ArticleDetail/818</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.35181/tces-2021-0009" target="_blank" >10.35181/tces-2021-0009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fatigue behaviour of a short crack in a thin protective layer laser-cladded on a steel substrate

Popis výsledku v původním jazyce

Fatigue behaviour of a short crack in a thin protective laser-cladded layer has been investigated. A two-dimensional finite element model of a steel bar with two thin cracked layers on its both sides was created. Propagation of a crack under pure tension and pure bending was studied via linear elastic fracture mechanics concept considering various Young’s modulus of the surface layers. The effect of the elastic mismatch between both materials is demonstrated considering the critical stress intensity factor range of 20 to 25 MPa·m1/2 as it is typical for aluminium alloys. It is shown that more compliant materials enhance the critical crack length that causes the unstable crack growth and therefore also the lifetime of the component with laser-cladded protective layers.

Název v anglickém jazyce

Fatigue behaviour of a short crack in a thin protective layer laser-cladded on a steel substrate

Popis výsledku anglicky

Fatigue behaviour of a short crack in a thin protective laser-cladded layer has been investigated. A two-dimensional finite element model of a steel bar with two thin cracked layers on its both sides was created. Propagation of a crack under pure tension and pure bending was studied via linear elastic fracture mechanics concept considering various Young’s modulus of the surface layers. The effect of the elastic mismatch between both materials is demonstrated considering the critical stress intensity factor range of 20 to 25 MPa·m1/2 as it is typical for aluminium alloys. It is shown that more compliant materials enhance the critical crack length that causes the unstable crack growth and therefore also the lifetime of the component with laser-cladded protective layers.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Transactions of the VŠB – Technical University of Ostrava, Civil Engineering Series

ISSN

1804-4824

e-ISSN

—

Svazek periodika

21

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

25-29

Kód UT WoS článku

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EID výsledku v databázi Scopus

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