OUTER AND INNER SURFACE FLAWS IN THICK-WALLED PRESSURE VESSELS.

S. N. Atluri; K. Kathiresan

OUTER AND INNER SURFACE FLAWS IN THICK-WALLED PRESSURE VESSELS.

Mechanical Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

This paper presents stress-intensity factors for semi-elliptical cracks of various geometries located at the outer or inner surfaces of pressurized or thermally shocked thick walled cylinders. The stress-intensity factors were directly computed through a three-dimensional, embedded singularity, hybrid-displacement finite element procedure. This model is based on a modified variational principle of total potential energy with three independently assumed field variables. The developed procedure has been checked for its convergence properties by solving problems such as embedded penny-shaped or elliptical cracks in infinite domains, for which analytical solutions are available. Through this study, an optimum size of the elements near the crack front, as compared to the ″characteristic length″ of the crack, is also derived.

Original language	English
State	Published - 1977
Event	Unknown conference - San Francisco, CA, USA Duration: Aug 15 1977 → Aug 19 1977

Conference

Conference	Unknown conference
City	San Francisco, CA, USA
Period	08/15/77 → 08/19/77

Cite this

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title = "OUTER AND INNER SURFACE FLAWS IN THICK-WALLED PRESSURE VESSELS.",

abstract = "This paper presents stress-intensity factors for semi-elliptical cracks of various geometries located at the outer or inner surfaces of pressurized or thermally shocked thick walled cylinders. The stress-intensity factors were directly computed through a three-dimensional, embedded singularity, hybrid-displacement finite element procedure. This model is based on a modified variational principle of total potential energy with three independently assumed field variables. The developed procedure has been checked for its convergence properties by solving problems such as embedded penny-shaped or elliptical cracks in infinite domains, for which analytical solutions are available. Through this study, an optimum size of the elements near the crack front, as compared to the ″characteristic length″ of the crack, is also derived.",

author = "Atluri, {S. N.} and K. Kathiresan",

year = "1977",

language = "English",

note = "null ; Conference date: 15-08-1977 Through 19-08-1977",

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T1 - OUTER AND INNER SURFACE FLAWS IN THICK-WALLED PRESSURE VESSELS.

AU - Atluri, S. N.

AU - Kathiresan, K.

PY - 1977

Y1 - 1977

N2 - This paper presents stress-intensity factors for semi-elliptical cracks of various geometries located at the outer or inner surfaces of pressurized or thermally shocked thick walled cylinders. The stress-intensity factors were directly computed through a three-dimensional, embedded singularity, hybrid-displacement finite element procedure. This model is based on a modified variational principle of total potential energy with three independently assumed field variables. The developed procedure has been checked for its convergence properties by solving problems such as embedded penny-shaped or elliptical cracks in infinite domains, for which analytical solutions are available. Through this study, an optimum size of the elements near the crack front, as compared to the ″characteristic length″ of the crack, is also derived.

AB - This paper presents stress-intensity factors for semi-elliptical cracks of various geometries located at the outer or inner surfaces of pressurized or thermally shocked thick walled cylinders. The stress-intensity factors were directly computed through a three-dimensional, embedded singularity, hybrid-displacement finite element procedure. This model is based on a modified variational principle of total potential energy with three independently assumed field variables. The developed procedure has been checked for its convergence properties by solving problems such as embedded penny-shaped or elliptical cracks in infinite domains, for which analytical solutions are available. Through this study, an optimum size of the elements near the crack front, as compared to the ″characteristic length″ of the crack, is also derived.

UR - http://www.scopus.com/inward/record.url?scp=85095906322&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85095906322

Y2 - 15 August 1977 through 19 August 1977

ER -

OUTER AND INNER SURFACE FLAWS IN THICK-WALLED PRESSURE VESSELS.

Abstract

Conference

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