Magnetic resonance imaging of contaminated and damaged core cells in polymer composite sandwich panels

Abstract

Computed tomography magnetic resonance imaging has been successfully applied to fully detect typical aircraft hydrogen-rich liquid contaminants entrapped in honeycomb core cells of structural polymer composite sandwich panels. With the aid of Bayesian-based image processing toolbox, the quantification, identification, and discrimination of the contaminants were also rapidly accomplished. Computed tomography magnetic resonance imaging has also been auspiciously applied to accurately define the extent of crushed-core damage in liquid impregnated honeycomb cells. Presented results strengthen the potential of magnetic resonance imaging as safe, fast, reliable, and user-friendly nondestructive testing technique to all engineering fields employing composite sandwich panels as high-demanding structural members.