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Pregled bibliografske jedinice broj: 121874

Poglavlje/Rad u knjizi

Autori: Kozak, Dražan; Kljajin, Milan; Semenski, Damir
Naslov: Influence of the Stress-State on the J-Integral Value by Fracture Toughness Specimens with Medium Thickness
Knjiga: DAAAM International Scientific Book 2003
Urednik/ci: Katalinic, Branko
Izdavač: DAAAM International Vienna
Grad: Beč
Godina: 2003
Raspon stranica:: 339-346
ISBN: 3-901509-30-5
Ključne riječi: fracture toughness specimen, J-integral, plane stress, plane strain, solid model, finite element analysis
Sažetak:
Experimental evaluation and numerical calculation of J-integral on BxB fracture toughness specimens with thickness of B=36 mm have 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 gives satisfied results. Unfortunately, 3-D finite element models demand much more time and efforts to obtain J-solution. Therefore, two-dimensional analyses are more user-friendly and faster, but it should be very careful by discussing of results getting into consideration all restrictions. However, it seems that for the structures with medium thickness plane strain state is more dominating, especially after initiation of the crack. But, after the onset of crack growth validity of J-dominance loses under plane strain condition.
Projekt / tema: 0152018, 0152015, 0152014, 0120004
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Strojarstvo
Puni text rada: 121874.Kozak_Kljajin_Semenski.doc
URL Internet adrese: http://daaam.com



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