Název:
Estimation of critical values for crack initiation from sharp V-notches
Autoři:
Náhlík, Luboš ; Štegnerová, Kateřina ; Hutař, Pavel Typ dokumentu: Příspěvky z konference Konference/Akce: Engineering Mechanics 2014 /20./, Svratka (CZ), 2014-05-12 / 2014-05-15
Rok:
2014
Jazyk:
eng
Abstrakt: Abstract: The aim of the paper is to estimate a critical value of an applied stress for a crack initiation from sharp tip of the V-notch using a procedure based on linear elastic fracture mechanics (LELM). The V-notch represents singular stress concentrator with the stress singularity exponent different from 0.5, therefore the generalized form of LELM for stress distribution description in the vicinity of the sharp V-notch was used. The stress singularity exponent depends on the V-notch opening angle, in general. A stability criterion based on the average value of the tangential stress component across a critical distance d from the V-notch tip is used in the paper. Resultant values of the critical applied stress are compared with experimental data.
Klíčová slova:
Failure initiation; generalized stress intensity factor; stress singularity; V-notch Číslo projektu: EE2.3.30.0063 Poskytovatel projektu: GA MŠk Zdrojový dokument: Engineering Mechanics 2014. 20th International conference. May 12-15, 2014, Svratka, Czech Republic. Book of full texts, ISBN 978-80-214-4871-1, ISSN 1805-8248
Instituce: Ústav fyziky materiálů AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0238933