Application of the J´-integral and the cohesive approach for the creep crack modelling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F26%3A0199482" target="_blank" >RIV/00216305:26110/26:0199482 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/aip/acp/article/3315/1/260006/3363088/Application-of-the-J-integral-and-the-cohesive" target="_blank" >https://pubs.aip.org/aip/acp/article/3315/1/260006/3363088/Application-of-the-J-integral-and-the-cohesive</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0291367" target="_blank" >10.1063/5.0291367</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application of the J´-integral and the cohesive approach for the creep crack modelling

Popis výsledku v původním jazyce

The subject of theoretical and experimental attention is the propagation of a macroscopic crack during the creep of austenitic steel, AISI 304L. To obtain input data, experiments were performed on bodies with and without a priori crack at a temperature of 973 K. A weak primary stage area is followed by an extensive area of stationary creep, as is shown. Propagation of the magistral crack occurred in a short interval defining the tertiary stage of life. A metallographic study of crack development showed cavitation failure along fracture path, intercrystalline damage was dominant. The description of the behaviour of a body with a dimensional defect (a priori crack) is monitored during high-temperature creep using a cohesive approach and implemented with help of cohesive elements in the finite element method (FEM). The parameter controlling the crack growth is the J˙ integral, the obtained results are compared with the experiments.

Název v anglickém jazyce

Application of the J´-integral and the cohesive approach for the creep crack modelling

Popis výsledku anglicky

The subject of theoretical and experimental attention is the propagation of a macroscopic crack during the creep of austenitic steel, AISI 304L. To obtain input data, experiments were performed on bodies with and without a priori crack at a temperature of 973 K. A weak primary stage area is followed by an extensive area of stationary creep, as is shown. Propagation of the magistral crack occurred in a short interval defining the tertiary stage of life. A metallographic study of crack development showed cavitation failure along fracture path, intercrystalline damage was dominant. The description of the behaviour of a body with a dimensional defect (a priori crack) is monitored during high-temperature creep using a cohesive approach and implemented with help of cohesive elements in the finite element method (FEM). The parameter controlling the crack growth is the J˙ integral, the obtained results are compared with the experiments.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS: ICNAAM 2023

ISBN

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ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

4

Strana od-do

260006-1-260006-4

Název nakladatele

AIIP

Místo vydání

Melville (USA)

Místo konání akce

Heraklion

Datum konání akce

11. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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