Delamination detection in laminated composite beams using the empirical mode decomposition energy damage index

The application of a relatively new empirical-mode-decomposition-based, non-destructive damage detection methodology for detecting delamination damage in composite beams is introduced. The method uses the vibration signature of the structure, captured through piezoelectric sensors. The integrity of the methodology is established through both experimental and computational investigations. The method was successful in distinguishing lengthwise and through-the-thickness locations of delamination, as well as the growth in delamination size.