Guided wave data - To be updated upon acceptance
Description
Research Hypothesis and Data Description This dataset validates the hypothesis that Least Attenuated Wave (LAW) modes can bridge the gap between long-range inspection and high-resolution damage detection in anisotropic viscoelastic composite laminates. What the data shows: Complete dispersion curves (phase/group velocity) and attenuation coefficients for [0/Φ/0] laminates (Φ = 0° to 90°) Identification of quasi-isotropic LAW modes above 5 MHz with weak dispersion and 1-2 mm wavelengths Systematic comparison between Kelvin-Voigt and hysteretic viscoelastic models Attenuation and wavelength maps as functions of frequency and fiber orientation Notable findings: LAW modes exhibit minimal sensitivity to fiber orientation above 5 MHz Correlation between Minimum Group Velocity (MGV) frequencies and attenuation maxima Formation of viscoelastic coupled modes in specific frequency-orientation ranges Data collection methodology: Data was generated numerically using the Legendre polynomial method for guided wave propagation in multilayered anisotropic viscoelastic media. The computational framework implements complex stiffness coefficients for both Kelvin-Voigt (frequency-dependent) and hysteretic (frequency-independent) damping models. Data interpretation and usage: Use dispersion curves to identify propagative modes at specific frequency-orientation pairs Consult attenuation maps to select optimal inspection parameters for desired propagation distance Reference wavelength maps to determine minimum detectable defect size (typically > λ/2) Employ the data to design hierarchical SHM systems combining low-frequency global monitoring with high-frequency local inspection The datasets enable reproduction of all figures and results presented in the manuscript, providing a comprehensive foundation for multi-scale structural health monitoring strategy development.
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Steps to reproduce
Data generated using Legendre polynomial method for guided wave propagation in multilayered anisotropic viscoelastic composites. Parameters: [0/Φ/0] laminates, frequency range 1.3-6 MHz, fiber orientations 0°-90°. Both Kelvin-Voigt and hysteretic damping models implemented.