Ultrasonic Guided Wave Methods for the Materials Characterization and Defect Detection
نویسندگان
چکیده
Laser ultrasonic sources and guided wave sensing methods, using sub-wavelength miniature sensors, are utilized to nondestructively evaluate composite materials. These methods enable in-plane characterization of the ultrasonic signals directional velocities. Additionally, sensing of the guided wave modes changes, in the geometrically complex composite structures, enables detection of the material structural damage. Experimental data demonstrates reproducibility and feasibility of such tests to monitor and characterize development of micro structural damage in the composite materials.
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