The Joy of Computing with Volume Integrals: Validation and Performance Comparison
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The Joy of Computing with Volume Integrals: Validation and Performance ComparisonAbstract
This is the second paper in a series dealing with the application of computational electromagnetics to nondestructive evaluation, using the vehicle of volume-integral equations, as developed in the preceding paper in this volume. A challenge-problem in the field of nondestructive evaluation is the inspection of fastener sites for fatigue cracks in multilayer structures. Using the volume-integral equation approach, problems comprising multilayer structures, ferromagnetic fastener sites, gaps between materials interfaces, and the presence of fatigue cracks are accurately modeled. Simulated studies are presented with VIC-3D©, a proprietary volume-integral code, and comparisons are made with FEM highlighting performance advantages of the VIE approach. Further, the role that volume-integral equations play in the context of other well-known computational-electromagnetic algorithms is discussed.
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