Thermal Fatigue Crack Growth in Stainless Steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00194432" target="_blank" >RIV/68407700:21340/12:00194432 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/12:43894844

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0308016112000907" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0308016112000907</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijpvp.2012.07.005" target="_blank" >10.1016/j.ijpvp.2012.07.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal Fatigue Crack Growth in Stainless Steel

Popis výsledku v původním jazyce

A judgment of residual service life of engineering parts exposed to thermal fatigue makes it possible to deal with economic and safety issues in power plants. The aim of this study is to analyze a fatigue crack initiation and propagation in A321 stainless steel bodies subjected to repeated thermal shocks. For this purpose, various methods of crack propagation monitoring were used. The comparison of the fracture surface micromorphology confirmed the similarity in the mechanism of the thermal and mechanical fatigue crack growth. Stress analysis using the finite element method consisting of transient thermal and mechanical solutions was performed in order to simulate the experiments. Thermal fatigue crack growth assessment was carried out on the basis ofthe experiments and the computed thermally induced stress intensity factors. This model successfully confirms the discussed analogy of thermal and mechanical stress induced damage.

Název v anglickém jazyce

Thermal Fatigue Crack Growth in Stainless Steel

Popis výsledku anglicky

A judgment of residual service life of engineering parts exposed to thermal fatigue makes it possible to deal with economic and safety issues in power plants. The aim of this study is to analyze a fatigue crack initiation and propagation in A321 stainless steel bodies subjected to repeated thermal shocks. For this purpose, various methods of crack propagation monitoring were used. The comparison of the fracture surface micromorphology confirmed the similarity in the mechanism of the thermal and mechanical fatigue crack growth. Stress analysis using the finite element method consisting of transient thermal and mechanical solutions was performed in order to simulate the experiments. Thermal fatigue crack growth assessment was carried out on the basis ofthe experiments and the computed thermally induced stress intensity factors. This model successfully confirms the discussed analogy of thermal and mechanical stress induced damage.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

International Journal of Pressure Vessels and Piping

ISSN

0308-0161

e-ISSN

—

Svazek periodika

98

Číslo periodika v rámci svazku

—

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

89-94

Kód UT WoS článku

000308847500010

EID výsledku v databázi Scopus

—