Paper Info
Title
A Novel Multiphysics Sensoring Method Based on Thermal and EC Techniques and Its Application for Crack Inspection
Abstract
Crack inspection is a critical issue in quantitative nondestructive evaluation (NDE). The eddy current (EC) method is effective for surface discontinuities detection, but the spatial resolution of conventional EC method is constrained by the size of EC probe. The photo inductive (PI) imaging method is a NDE technique that combines EC and laser-based thermal imaging methods. It had been clearly demonstrated that PI method is a high-resolution technique from practical experiments. In this paper, the numerical multiphysics simulation of PI imaging have been performed with 2D transient using the finite element method (FEM) to characterize corner cracks at the edge of a Ti-6Al-4V bolt hole specimen. The FEM simulation results of 0.25-mm, 0.50-mm, and 0.75-mm rectangular notches are showed and discussed. The results show that the PI imaging has higher spatial resolution in the area of the defect in 2D models as compared with the conventional EC images. We demonstrate that the PI method is a novel sensoring method for characterizing the geometric shape of cracks.
Year
DOI
Venue
2008
10.1109/SUTC.2008.53
SUTC
Keywords
Field
DocType
ec probe,pi imaging,finite element method,imaging method,fem simulation result,laser-based thermal imaging method,conventional ec image,nde technique,ec techniques,conventional ec method,novel multiphysics sensoring method,pi method,crack inspection,finite element methods,eddy currents,titanium alloys,nondestructive evaluation,spatial resolution,shape,eddy current,eddy current testing,high resolution,inspection,finite element analysis,fem,numerical simulation,multiphysics simulation
Eddy-current testing,Computer simulation,Multiphysics,Computer science,Nondestructive testing,Finite element method,Real-time computing,Geometric shape,Eddy current,Acoustics,Image resolution
Conference
Citations 
PageRank 
References 
1
0.35
1
Authors
2
Name
Order
Citations
PageRank
Cheng-Chi Tai185.43
Yen-Lin Pan241.60