volume | PIER Journals

Abstract

Numerical modeling of eddy current (EC) phenomena is pivotal in nondestructive evaluation (NDE). It has become invaluable in NDE industries, contributing to probe design, inspection procedures, defect characterization, model training, and results interpretation. This study comprehensively explores two numerical methods - Volume Integral Method (VIM) and Finite Element Method (FEM) to assess their suitability for EC NDE. Four test cases involving varying geometries, defect types, and probe configurations were modeled to compare computational compatibility. Numerical results are evaluated for their accuracy, efficiency, and practical implications. Results indicate a reasonable correlation between the two methods, with VIM excelling at computational efficiency for simpler geometries, and FEM demonstrating robustness for complex configurations. The findings highlight the strengths and limitations of each method, aiding users in selecting appropriate techniques for defect characterization and optimizing inspection conditions.

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Dr. Rebeka Sultana

Dr. Mingyang Lu

Dr. Yuan Ji

Dr. John C. Aldrin

Professor Jiming Song