Fracture mechanics based analysis of the fatigue life of defective welded joints

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F20%3A00524005" target="_blank" >RIV/68378297:_____/20:00524005 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.2320/matertrans.MT-M2019258" target="_blank" >https://doi.org/10.2320/matertrans.MT-M2019258</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2320/matertrans.MT-M2019258" target="_blank" >10.2320/matertrans.MT-M2019258</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fracture mechanics based analysis of the fatigue life of defective welded joints

Popis výsledku v původním jazyce

This work was motivated by the endeavour to experimentally determine the influence of crack position on the fatigue life of weldments. Plates were cut from a pipe of X52 pipeline steel 830 mm in diameter and 10mm in wall thickness and their contact edges were then prepared for single-bevel butt welds. The plates were then welded by manual arc welding, and separate specimens 10 mm in width and 5 mm in thickness were cut from the weldment perpendicularly to the weld bead. The electro-spark method was then used to produce blunt crack discontinuities for the initiation of fatigue cracks. The cracked weldment specimens then underwent cyclic loading at reference force level Fmax = 5.5 kN and stress asymmetry ratio R = Fmin/Fmax = 0.1. The test results made it possible to quantify the effects of the size and position of crack-like discontinuities on weld fatigue life.

Název v anglickém jazyce

Fracture mechanics based analysis of the fatigue life of defective welded joints

Popis výsledku anglicky

This work was motivated by the endeavour to experimentally determine the influence of crack position on the fatigue life of weldments. Plates were cut from a pipe of X52 pipeline steel 830 mm in diameter and 10mm in wall thickness and their contact edges were then prepared for single-bevel butt welds. The plates were then welded by manual arc welding, and separate specimens 10 mm in width and 5 mm in thickness were cut from the weldment perpendicularly to the weld bead. The electro-spark method was then used to produce blunt crack discontinuities for the initiation of fatigue cracks. The cracked weldment specimens then underwent cyclic loading at reference force level Fmax = 5.5 kN and stress asymmetry ratio R = Fmin/Fmax = 0.1. The test results made it possible to quantify the effects of the size and position of crack-like discontinuities on weld fatigue life.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/TE02000162" target="_blank" >TE02000162: Centrum pokročilých materiálů a technologií pro ochranu a zvýšení bezpečnosti</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Materials Transactions

ISSN

1345-9678

e-ISSN

—

Svazek periodika

61

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

9

Strana od-do

926-934

Kód UT WoS článku

000529083900018

EID výsledku v databázi Scopus

2-s2.0-85084916917