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PORE MORPHOLOGY INFLUENCE AT POROSITY ULTRASONIC TESTING OF CFRP BY PULSE-ECHO METHOD
At present, the porosity of carbon fiber reinforced plastic (CFRP) is usually determined by measuring ultrasonic attenuation coefficient. The available detection models mainly focus on the ultrasonic scattering mechanism from regular voids, and pay little attention to the real random voids. However, some researches have demonstrated that the interaction between natural voids and ultrasonic beam is much more complicated than that of regular voids. Due to random and complex morphology of actualdoi:10.14489/td.2018.08.pp.022-029 fatcat:7gkjtd7pbzen3dkyggq5rymlri