Hrvatska znanstvena bibliografija (CROSBI)



Pregled bibliografske jedinice broj: 192988

Časopis

Autori: Gubeljak, Nenad; Semenski, Damir; Drvar, Nenad; Predan, Jožef; Kozak, Dražan; Oblak, Maks
Naslov: Object grating method application in strain determination on ctod tests
Izvornik: Strain (0039-2103) 42 (2006), 2; 81-87
Vrsta rada: članak
Ključne riječi: Crack initiation; CTOD; Heterogeneous weld joint; Object grating method; Photogrammetry
Sažetak:
Standard fracture toughness tests require standard specimens with the presumption that mechanical properties are uniform in the crack growth direction. Standards for CTOD fracture tests prescribe remote crack mouth opening displacement-CMOD, which can lead to in-adequate results in the case of heterogeneous materials properties. This paper describes the application of an object grating method on the fracture behaviour of a heterogeneous specimen. Fracture behaviour is described by measuring deformation on the surface of a specimen, in terms of crack tip opening displacement and, consequently, by strain determination. An object grating method is advantageously used when measuring modified CTOD tests on two specimens with an initial crack in a macroscopic heterogeneous welded joint. Results significantly show that fracture behaviour depends on the material in the vicinity of the crack tip concerning the direction of crack propagation.
Projekt / tema: 0152018, 0120004, 0120061
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Kategorija: Znanstveni
Znanstvena područja:
Strojarstvo
Puni text rada: 192988.OBJECT_GRATING_METHOD_APPLICATION_16Aug2005.doc
URL cjelovitog teksta:
Google Scholar: Object grating method application in strain determination on ctod tests