Application of perturbation methods in finite element analysis of stress corrosion cracking

Author

Yang, Sunho ; Sun, Yushi ; Udpa, Lalita ; Udpa, Satish S. ; Lord, William

Author_Institution

Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1714

Lastpage

1718

Abstract

Finite elements analysis of magnetic nondestructive evaluation phenomena often involves modeling of complex interactions between the magnetostatic fields and tight, zero volume cracks in large structures. The modeling effort therefore faces significant challenges in terms of large memory storage and computation time requirements. This paper presents an approach based on perturbation methods for finite element modeling of a colony of stress corrosion cracks in a gas transmission pipeline

Keywords

crack detection; finite element analysis; magnetic leakage; nondestructive testing; perturbation theory; stress corrosion cracking; crack detection; current perturbation method; finite element analysis; gas transmission pipeline; magnetic flux leakage; magnetostatic field; nondestructive evaluation; stress corrosion cracking; Corrosion; Finite element methods; Inspection; Magnetic analysis; Magnetic flux leakage; Magnetostatics; Perpendicular magnetic recording; Perturbation methods; Pipelines; Stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877773

Filename

877773