Open AccessRelevance assessment of various techiques in fatigue crack growth on samples
Author(s) -
Ye.D. Nazarova,
AUTHOR_ID,
V. Yu. Filin,
К. Е. Садкин,
I.A. Galchun,
A.A. Lavrentyev,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
trudy krylovskogo gosudarstvennogo naučnogo centra
Language(s) - English
Resource type - Journals
eISSN - 2618-8244
pISSN - 2542-2324
DOI - 10.24937/2542-2324-2021-2-s-i-114-120
Subject(s) - paris' law , fracture toughness , fatigue testing , materials science , relevance (law) , certification , front (military) , structural engineering , toughness , fracture mechanics , forensic engineering , mechanical engineering , crack closure , composite material , engineering , economics , management , political science , law
Certification and delivery tests of steels for important structures and welds include determination of static fracture toughness parameters on notched samples with a fatigue crack grown in advance from the notch tip. Regulatory documents governing these tests contain certain requirements to this crack’s front shape. This paper discusses the techniques that made it possible to overcome the challenges in crack growth, as well as presents experimental confirmation of their efficiency.