Residual Stress Around the Fatigue Crack front in a Rectangular Sample cut from CT Specimen

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00353805" target="_blank" >RIV/68407700:21340/22:00353805 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1142/S1756973721440030" target="_blank" >https://doi.org/10.1142/S1756973721440030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1142/S1756973721440030" target="_blank" >10.1142/S1756973721440030</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Residual Stress Around the Fatigue Crack front in a Rectangular Sample cut from CT Specimen

Popis výsledku v původním jazyce

An elastic-plastic finite element model was built to simulate the stress geld around a fatigue crack in a standard CT specimen before and after splitting to obtain a rectangular specimen for further investigation. Plane stress and plane strain, as well as 3D simulations, were performed and compared. The simulations consist of two steps: i) the standard CT-specimen undergoes cyclic loading until the fatigue crack tip achieves the middle of the specimen and ii) a rectangular sample with the crack to one half of its width was cut from the CT-specimen. A parametric plane strain study was carried out to determine the location of the cutting plane relative to the edge of the plastic zone, where the impact on the residual stress due to stress relief after cutting is negligible. It was also found that in the peripheral parts of the front close to the free surface, the stress is strongly influenced by the curvature of the crack front.

Název v anglickém jazyce

Residual Stress Around the Fatigue Crack front in a Rectangular Sample cut from CT Specimen

Popis výsledku anglicky

An elastic-plastic finite element model was built to simulate the stress geld around a fatigue crack in a standard CT specimen before and after splitting to obtain a rectangular specimen for further investigation. Plane stress and plane strain, as well as 3D simulations, were performed and compared. The simulations consist of two steps: i) the standard CT-specimen undergoes cyclic loading until the fatigue crack tip achieves the middle of the specimen and ii) a rectangular sample with the crack to one half of its width was cut from the CT-specimen. A parametric plane strain study was carried out to determine the location of the cutting plane relative to the edge of the plastic zone, where the impact on the residual stress due to stress relief after cutting is negligible. It was also found that in the peripheral parts of the front close to the free surface, the stress is strongly influenced by the curvature of the crack front.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA19-14237S" target="_blank" >GA19-14237S: Studium nelineární interakce elastických vln s trhlinou</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Multiscale Modelling

ISSN

1756-9737

e-ISSN

1756-9745

Svazek periodika

13

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SG - Singapurská republika

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

000731505600001

EID výsledku v databázi Scopus

2-s2.0-85126042521