Magnetic Field Interactions with Material Discontinuities.
Abstract
All methods of nondestructive testing (NDT) rely for their operation on the interaction of an energy source with defects in the material under test. Such interactions are extremely difficult to model analytically because of the awkward boundaries associated with realistic defect shapes and the inherent nonlinear behavior of many material properties. The major contribution of this project work has been to show that finite element analysis techniques can be used to model electromagnetic energy/defect interactions associated with the active leakage field, residual leakage field, eddy current and pulsed eddy current NDT methods. Developed code has been used to study probe design, to simulate testing geometries too difficult to replicate in a laboratory environment and to aid in the development of defect characterization algorithms. Originator furnished key words include: Nondestructive testing, Active leakage fields, Residual leakage fields, Eddy current NDT, Numerical modeling, Finite element analysis, Defect characterization.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1984
- Accession Number
- ADA150197
Entities
People
- W. Lord
Organizations
- Colorado State University