High-velocity ice impact damage quantification in composite laminates using a frequency domain-based correlation approach

This paper investigates the feasibility of using a novel domain-based correlation approach derived from complex frequency domain assurance criterion (CFDAC) for detection and quantification impact damage in composite laminates. The CFDAC is essentially complex-valued two-dimensional indicator covariance between two sets response functions each pair spectral lines corresponding to vibration-response pristine states. study focuses on induced by high-velocity ice impacts carbon fiber laminated plates. experimental results demonstrate that proposed methodology correctly identifies level via user-independent scalar indicator. Therefore, this has potential use as indicator, which could be adapted structural assessment non-destructive method. research aims contribute further development functional, autonomous, reliable health monitoring systems structures based spectral-domain indices.