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Fracture Analysis of Cracked Cylindrical Shells under Internal Pressure and Bending (CROSBI ID 491575)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Tonković, Zdenko ; Sorić, Jurica Fracture Analysis of Cracked Cylindrical Shells under Internal Pressure and Bending // Proceedings of The Sixth International Conference on Computational Structures Technology / Topping, B.H.V. ; Bittnar, Y. (ur.). Stirling: Civil-Comp Press, 2002. str. 1-17-x

Podaci o odgovornosti

Tonković, Zdenko ; Sorić, Jurica

engleski

Fracture Analysis of Cracked Cylindrical Shells under Internal Pressure and Bending

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-centre crack angle on the J-integral evaluation has been illustrated. A non-proportional loading approach, which includes only tension forces due to the pressure and neglected pressure-induced hoop stresses, has been applied. The solutions for a thin-walled pipe with the medium crack length are obtained on the basis of nonlinear 3D finite element analysis using deformation plasticity. For off-centre 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 centred cracks. This effect exhibited for the medium crack is slightly higher than that for pure bending. In addition, an increase in the centre angles produces a decrease in the J values which results in increasing load-carrying capacity of a cylinder.

elastoplastic fracture analysis; J-integral evaluation; cylindrical shells; through-wall cracks; symmetrically centred cracks; off-centre crack; combined bending and tension

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Podaci o prilogu

1-17-x.

2002.

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objavljeno

Podaci o matičnoj publikaciji

Proceedings of The Sixth International Conference on Computational Structures Technology

Topping, B.H.V. ; Bittnar, Y.

Stirling: Civil-Comp Press

Podaci o skupu

Sixth International Conference on Computational Structures Technology

predavanje

04.09.2002-06.09.2002

Prag, Češka Republika

Povezanost rada

Strojarstvo