Nonlinear ultrasonic characterization of material deterioration of asphalt mixture during cracking-healing cycles
Construction and Building Materials（2021）
摘要
•A NDE method based on SHG principle is proposed for damage evaluation of asphalt.•The feasibility is validated by the correlation of SHG results with crack variation.•The sensitivity is validated by differentiating tiny cracks missed by crack detector.
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关键词
Asphalt mixture,Second harmonic generation,Nonlinear ultrasonic,Crack characterization,Surface waves
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