Naslov
Elastoplastic Fracture Analysis of Through-Wall Cracked Cylindrical Shells

Autori
Tonković, Zdenko ; Sorić, Jurica ; Skozrit, Ivica

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

Izvornik
Advances in Computational & Experimental Engineering & Sciences, Proceedings of the 2003 International Conference on Computational & Experimental Engineering & Sciences / Atluri, S.N. ; Beskos, D.E. ; Polyzos, D. - Lahti : Tech Science Press, 2003

Skup
International Conference on Computational & Experimental Engineering & Sciences

Mjesto i datum
Krf, Grčka, 25.07.2003. - 29.07.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
elastoplastic fracture analysis; J-integral evaluation; pipes; through-wall circumferential cracks; off-centre cracks; combined internal pressure and bending

Sažetak
This paper deals with elastic and elastoplastic fracture analyses of cracked cylindrical shells subjected to combined internal pressure and bending. The effect of an off-center crack angle on the J-integral evaluation has been illustrated. The hoop stresses effect due to internal pressure is considered and a proportional loading approach has been applied. The solutions for J-integral values are obtained on the basis of nonlinear 3D finite element analysis using deformation theory of plasticity. For off-center cracks with a small offset angle, the computed values of the J-integral at the crack front which is farther away from the bending axis of the cylinder exceed those of the centered cracks. An increase in the center angles produces a decrease in the J values, which results in increasing load-carrying capacity of a cylinder. The FE solutions generated in this study were used to develop new analytical approximation of elastic correction factor.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA