섬유

PHYSICAL INTERPREATION AND DEVELOPMENT OF ULTRASONIC NONDESTRUCTIVE EVALUATION TECHNIQUE

  • 출판일1997.11
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 425
The physics underlying the interaction of ultrasound with the sample in advanced ultrasonic nondestructive evaluation methods was examined. these methods are used to characterize composites. The properties of complex, three-dimensional composites that limit the ability of ultrasound to detect flaws were identified and characterized. In the initial experiments, plezoelectric receivers measured the capability of these measurements to detect defect-mimicking inhomogeneities in the pressence of background phase distortion was evaluated. In subsequent experiments, the effects of ultrasonic propagation through composites with inherently complex architectures were examined.
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