A5059991824- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Material Properties and Processing
- Non-Destructive Testing Techniques
- Mechanical Behavior of Composites
McMaster University
2022-2025
This study investigated an anomalous frequency shift observed in collected spectra from inline monitoring system based on guided ultrasonic waves, with the changing flow rate of extrusion compounding process for fiber-reinforced thermoplastics. Three possible parameters to explain peak shifting, namely melt temperature, velocity, and fiber length were evaluated. The unlikely potential a doppler moment due was readily dismissed analysis since fluid through die too slow while resonance...
Abstract This study evaluated the paired performance of different signal processing techniques and supervised learning models being capable identifying subtle differences in otherwise similar acoustic signals related to detecting fiber orientation a polymer composite. Projection Latent Structures demonstrated poor predictive capabilities composite structure based on spectral analysis signal. AI showed great improvements capabilities, with artificial neural network modeling exceeding...