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LIŠKUTÍN, P. JÍŠA, D. KRUML, T. POLÁK, J.
Original Title
Small fatigue crack growth in aluminium alloy EN AW-6082/T6
Type
journal article - other
Language
English
Original Abstract
The kinetics of small fatigue crack growth at room temperature was measured by a direct observation of the shallow notch on a cylindrical specimen. The growth of the crack was measured within the range of half surface crack length from ~10 micrometers up to ~2 mm. A linear dependence between the crack growth rate and the crack length, observed in case of steels, was confirmed to be valid in the aluminium 6082/T6 alloy, too. The crack growth coefficient kg increases with plastic strain amplitude; this dependence is well described by a power law. The fatigue life prediction based on the crack growth measurements is compared with the Manson-Coffin law.
Keywords
aluminium alloy, small fatigue crack, crack crowth rate, crack nucleation
Authors
LIŠKUTÍN, P.; JÍŠA, D.; KRUML, T.; POLÁK, J.
RIV year
2010
Released
1. 8. 2010
Publisher
Elsevier
Location
London
ISBN
0142-1123
Periodical
INTERNATIONAL JOURNAL OF FATIGUE
Year of study
32
Number
12
State
United Kingdom of Great Britain and Northern Ireland
Pages from
1913
Pages to
1920
Pages count
8
BibTex
@article{BUT49753, author="Petr {Liškutín} and David {Jíša} and Tomáš {Kruml} and Jaroslav {Polák}", title="Small fatigue crack growth in aluminium alloy EN AW-6082/T6", journal="INTERNATIONAL JOURNAL OF FATIGUE", year="2010", volume="32", number="12", pages="1913--1920", issn="0142-1123" }