A Time-domain Reflectometry Method for Automated Measurement of Crack Propagation in Composites

fr *Author to Figure 5 a Journal ofacture toughness.the DCB sensor and the sensitivity for crack detection, with good agreement. Comparison with standard visual methods in DCB testing showed excellent correlation in crack location, crack propagation (LC), and the interlaminar fracture toughness (GIC) values. The TDR sensor design and model-based parametric studies are carried out to determine optimal sensor geometry and configuration. The results demonstrate that the TDR-based method can measure crack propagation parameters at high resolution and accuracy, in an automated manner using low-cost sensors.A. ABU OBAID,1, * S. YARLAGADDA,1 M. K. YOON,