Abstract

Nondestructive evaluation (NDE) is to materials what CAT (computerized axial tomography) scanning is to the human body-an attempt to look inside without opening it up. As in CAT scanning, modern NDE requires sophisticated mathematical software to perform its function. This is especially true with regard to quantitative NDE, wherein we attempt to quantify defects, that is, determine their size, location, even shape, rather than just detect their presence. Low-frequency electromagnetic methods using eddy-currents are a traditional mode of doing NDE. (In approximately 35% of all applications, NDE uses eddy-currents depending upon the specific application.) But the technology still suffers from a lack of algorithms and software to allow its full potential to be realized. Here we will describe a computer code that is being developed to alleviate that problem.

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