Nondestructive evaluation of porosity in additive manufacturing by laser ultrasonic surface wave
Jun Zhang, Xin Zhao, Bing Yang, Jingyu Li, Yan Liu, Guanbing Ma, Shuxian Yuan, Jinfeng Wu
Topics & Concepts
PorosityMaterials scienceWavelet packet decompositionWaveletUltrasonic sensorAcousticsNondestructive testingEnergy (signal processing)Wave packetSurface acoustic waveWavelet transformComposite materialMathematicsComputer sciencePhysicsArtificial intelligenceQuantum mechanicsStatisticsThermography and Photoacoustic TechniquesAdditive Manufacturing Materials and ProcessesWelding Techniques and Residual Stresses