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Influence of the stress state on the J-integral value by fracture toughness specimens with medium thickness


Kozak, Dražan; Kljajin, Milan; Semenski, Damir
Influence of the stress state on the J-integral value by fracture toughness specimens with medium thickness // Annals of DAAAM for 2002 & Proceedings of the 13th International DAAAM Symposium 'Intelligent Manufacturing & Automation: Learning from Nature' / Katalinić, Branko (ur.).
Vienna: DAAAM International Vienna, 2002. str. 287-288 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Influence of the stress state on the J-integral value by fracture toughness specimens with medium thickness

Autori
Kozak, Dražan ; Kljajin, Milan ; Semenski, Damir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Annals of DAAAM for 2002 & Proceedings of the 13th International DAAAM Symposium 'Intelligent Manufacturing & Automation: Learning from Nature' / Katalinić, Branko - Vienna : DAAAM International Vienna, 2002, 287-288

Skup
13th International DAAAM Symposium 'Intelligent Manufacturing & Automation: Learning from Nature'

Mjesto i datum
Beč, Austrija, 23-26.10.2002.

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Fracture toughness specimen; J-integral; plane stress; plane strain; finite element analysis

Sažetak
: Numerical calculation of J-integral on BxB fracture toughness specimens with thickness of B=36 mm has been performed. For this thickness neither pure plane stress nor pure plane strain state assumption is not valid, because there prevails mixed state-of-stress. In that case, only solid finite element model of the specimen give us satisfied results. This paper shows that finite element solutions of J-integral for planes extracted from the 3-D model enable us nearest results to the experimental ones. However, it seems that for the structures with medium thickness plane strain state is more dominating, especially after initiation of the crack.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo



POVEZANOST RADA


Ustanove
Fakultet strojarstva i brodogradnje, Zagreb,
Strojarski fakultet, Slavonski Brod