Three dimensional analysis of thermal shock effect on inner semi-elliptical surface cracks in a cylindrical pressure vessel

M. Perl; Y. Greenberg

Three dimensional analysis of thermal shock effect on inner semi-elliptical surface cracks in a cylindrical pressure vessel

M. Perl, Y. Greenberg

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Transient mode I stress intensity factors (K_rr) distributions along semi-ellipitical cracks fronts resulting from a thermal shock is investegated K_rr distributions for various crack arrays of n=2+48 cracks bearing cracks of relative depth of a/W=0.1+0.4 and with ellipticities of a/c-0.5, 1.0 and 1.5 are evaluated for a cylindrical pressure vessel of radii ratio of R_o/R_i=2 Temperature distributions through the vessel's wall are evaluated for various time steps in the interval 2+10 msec. Both the thermal and the elastic analyses are performed via the finite element (FE) method using the standard ANSYS 5.1 code. The temperature fields evaluated in the first step serve as input to the second step, the elastic analysis, in which the K_rr is evaluated.

Original language	English
Pages (from-to)	55-59
Number of pages	5
Journal	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	344
State	Published - 1 Dec 1997

ASJC Scopus subject areas

Mechanical Engineering

Cite this

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abstract = "Transient mode I stress intensity factors (Krr) distributions along semi-ellipitical cracks fronts resulting from a thermal shock is investegated Krr distributions for various crack arrays of n=2+48 cracks bearing cracks of relative depth of a/W=0.1+0.4 and with ellipticities of a/c-0.5, 1.0 and 1.5 are evaluated for a cylindrical pressure vessel of radii ratio of Ro/Ri=2 Temperature distributions through the vessel's wall are evaluated for various time steps in the interval 2+10 msec. Both the thermal and the elastic analyses are performed via the finite element (FE) method using the standard ANSYS 5.1 code. The temperature fields evaluated in the first step serve as input to the second step, the elastic analysis, in which the Krr is evaluated.",

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AB - Transient mode I stress intensity factors (Krr) distributions along semi-ellipitical cracks fronts resulting from a thermal shock is investegated Krr distributions for various crack arrays of n=2+48 cracks bearing cracks of relative depth of a/W=0.1+0.4 and with ellipticities of a/c-0.5, 1.0 and 1.5 are evaluated for a cylindrical pressure vessel of radii ratio of Ro/Ri=2 Temperature distributions through the vessel's wall are evaluated for various time steps in the interval 2+10 msec. Both the thermal and the elastic analyses are performed via the finite element (FE) method using the standard ANSYS 5.1 code. The temperature fields evaluated in the first step serve as input to the second step, the elastic analysis, in which the Krr is evaluated.

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ER -

Three dimensional analysis of thermal shock effect on inner semi-elliptical surface cracks in a cylindrical pressure vessel

Abstract

ASJC Scopus subject areas

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