Short fatigue crack growth in a residual stress field in a 7075 al-alloy after shot peening

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25797000%3A_____%2F12%3A%230000307" target="_blank" >RIV/25797000:_____/12:#0000307 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.uniza.sk/komunikacie" target="_blank" >http://www.uniza.sk/komunikacie</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Short fatigue crack growth in a residual stress field in a 7075 al-alloy after shot peening

Popis výsledku v původním jazyce

The paper contains results of an investigation of effects of shot peening on growth of physically short fatigue cracks in a 2.4 mm thick sheet of a 7075 L-alloy, clad with a 7072 Al-alloy. Using an improved and verified experimental methodology, particularly direct current potential drop (DCPD) method, short fatigue cracks of the length from 0.2 mm to more than 3 mm, most of them between 0.8 - 1.5 mm, were prepared under high cycle fatigue repeated tensile loading. Edges of the specimens with short fatigue cracks were then shot peened. Significant retardation of crack growth was observed particularly in case of cracks shorter than 2 mm. The work was completed by a unique measurement of actual crack growth rate throughout the peened area with residual stresses starting with crack length less than 0.2 mm.

Název v anglickém jazyce

Short fatigue crack growth in a residual stress field in a 7075 al-alloy after shot peening

Popis výsledku anglicky

The paper contains results of an investigation of effects of shot peening on growth of physically short fatigue cracks in a 2.4 mm thick sheet of a 7075 L-alloy, clad with a 7072 Al-alloy. Using an improved and verified experimental methodology, particularly direct current potential drop (DCPD) method, short fatigue cracks of the length from 0.2 mm to more than 3 mm, most of them between 0.8 - 1.5 mm, were prepared under high cycle fatigue repeated tensile loading. Edges of the specimens with short fatigue cracks were then shot peened. Significant retardation of crack growth was observed particularly in case of cracks shorter than 2 mm. The work was completed by a unique measurement of actual crack growth rate throughout the peened area with residual stresses starting with crack length less than 0.2 mm.

Druh

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

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Komunikacie

ISSN

1335-4205

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

6

Strana od-do

31-36

Kód UT WoS článku

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EID výsledku v databázi Scopus

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