Shift of S-N curves of ferritic nodular cast iron due to loading cycle asymmetry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F08%3APU78026" target="_blank" >RIV/00216305:26210/08:PU78026 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60162694:G43__/08:#0001921

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Shift of S-N curves of ferritic nodular cast iron due to loading cycle asymmetry

Popis výsledku v původním jazyce

Increasing the mean stress of loading cycle causes a shift of fatigue (Wöhler s or S-N) curves towards higher values of fatigue strength if the curves are represented by the upper stress of loading cycle in dependence on the number of cycles to fracture.A successful quantitative description of the shift in gigh-cycle region was published by Walker. The aim of the present paper consists in deriving relations that describe the shift of fatigue curves in the whole cycle region from UTS to permanent fatigue limit. Their applicability is demonstrated by successful fit of the family of tfatigue curves loading cycle asymetries when the curves are described by the Stromeyer qquation as well as by the Kohout and Vechet qquation. Also the limitation of Walker sapproach in the case of high mean stresses is discussed and a certain solution is proposed.

Název v anglickém jazyce

Shift of S-N curves of ferritic nodular cast iron due to loading cycle asymmetry

Popis výsledku anglicky

Increasing the mean stress of loading cycle causes a shift of fatigue (Wöhler s or S-N) curves towards higher values of fatigue strength if the curves are represented by the upper stress of loading cycle in dependence on the number of cycles to fracture.A successful quantitative description of the shift in gigh-cycle region was published by Walker. The aim of the present paper consists in deriving relations that describe the shift of fatigue curves in the whole cycle region from UTS to permanent fatigue limit. Their applicability is demonstrated by successful fit of the family of tfatigue curves loading cycle asymetries when the curves are described by the Stromeyer qquation as well as by the Kohout and Vechet qquation. Also the limitation of Walker sapproach in the case of high mean stresses is discussed and a certain solution is proposed.

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GA106%2F03%2F1265" target="_blank" >GA106/03/1265: Vliv vybraných faktorů na únavové vlastnosti izotermicky zušlechtěné tvárné litiny</a><br>

Návaznosti

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

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING

ISSN

1319-8025

e-ISSN

—

Svazek periodika

33

Číslo periodika v rámci svazku

1B

Stát vydavatele periodika

SA - Království Saúdská Arábie

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—