Third harmonic approximate phase velocity matching nonlinear early fatigue damage detection
Gaozheng Zhao, Mingshun Jiang, Yuxiang Luo, Qingmei Sui
Topics & Concepts
Phase velocityLamb wavesHarmonicAcousticsAmplitudeFast Fourier transformNonlinear systemFourier transformPhase (matter)Matching (statistics)Mathematical analysisDispersion (optics)PhysicsOpticsMechanicsMathematicsWave propagationAlgorithmStatisticsQuantum mechanicsUltrasonics and Acoustic Wave PropagationThermography and Photoacoustic TechniquesNon-Destructive Testing Techniques