Sensitivity of numerically modelled crack closure to material

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00568286" target="_blank" >RIV/68081723:_____/22:00568286 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.115" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2022.12.115</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.115" target="_blank" >10.1016/j.prostr.2022.12.115</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sensitivity of numerically modelled crack closure to material

Popis výsledku v původním jazyce

Crack closure is a phenomenon which slows down fatigue crack propagation and leads to higher residual life of components and nto a change in the crack front curvature. Because of the significant impact on the fatigue crack growth rate, the scientific and nengineering community has been trying to describe this phenomenon very precisely. One of the most frequently described nclosure mechanisms is plasticity-induced crack closure (PICC) which is dominant in the Paris regime.nIn the presented work, a CT specimen has been modelled three-dimensionally and the PICC estimations have been done for ndifferent models of materials to investigate their sensitivity. The models were cyclically loaded by forces inducing maximal nstress intensity factor of 17 MPa√m at the load ratio ???????? = 0.1. The crack was curved according to conducted experiments. Even nthough Newman’s equation estimates PICC almost constant, differences were observed from finite element simulations

Název v anglickém jazyce

Sensitivity of numerically modelled crack closure to material

Popis výsledku anglicky

Crack closure is a phenomenon which slows down fatigue crack propagation and leads to higher residual life of components and nto a change in the crack front curvature. Because of the significant impact on the fatigue crack growth rate, the scientific and nengineering community has been trying to describe this phenomenon very precisely. One of the most frequently described nclosure mechanisms is plasticity-induced crack closure (PICC) which is dominant in the Paris regime.nIn the presented work, a CT specimen has been modelled three-dimensionally and the PICC estimations have been done for ndifferent models of materials to investigate their sensitivity. The models were cyclically loaded by forces inducing maximal nstress intensity factor of 17 MPa√m at the load ratio ???????? = 0.1. The crack was curved according to conducted experiments. Even nthough Newman’s equation estimates PICC almost constant, differences were observed from finite element simulations

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/GA22-28283S" target="_blank" >GA22-28283S: Oxidy indukované zavírání trhliny a jeho dopady na únavovou životnost mechanických komponent (OXILAP)</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Procedia Structural Integrity

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

8

Strana od-do

911-918

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Funchal

Datum konání akce

27. 6. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

001248864600118