Title :
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
fDate :
7/1/2000 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
