NONDESTRUCTIVE INSPECTION AND PERFORMANCE PREDICTION METHOD FOR COMPOSITE STRUCTURES, ULTRASONIC WAVE IMAGING SYSTEM AND CALIBRATION METHOD

• Main Authors: JILL P. BINGHAM, CLAYTON M. LITTLE, GARY E. GEORGESON, YUAN-JYE WU, HONG HUE TAT, JOHN Z. LIN, MARK D. WINTERS, SADIE L. FIENI, JOHN M. PRYOR, JAMES C. KENNEDY, KATHRYN T. MOORE
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a nondestructive inspection and performance prediction method for composite structures, an ultrasonic wave imaging system and a calibration method. In accordance with some embodiments, the method combines the use of B-scan ultrasound data, automated optical measurement of wrinkles and geometry of cross-sections, and finite element analysis of wrinkled composite structure toprovide the ability to assess the actual significance of a detected wrinkle relative to the intended performance of the structure. The disclosed method uses an ultrasonic inspection system that has been calibrated by correlating ultrasonic B-scan data acquired from reference standards with measurements of optical cross sections (e.g., micrographs) of those reference standards. 提供了用于复合结构的无损检查和性能预测的方法、超声波成像系统及用于校准超声波检查系统的方法。根据些实施例，该方法结合了B型扫描超声波数据的使用、褶皱和横截面的几何形状的自动光学测量、以及带有褶皱的复合结构的有限元分析，以提供评估检测到的褶皱相对于结构的预期性能的实际意义的能力。所公开的方法使用超声波检查系统，已经通过使从参考标准获得的超声波B扫描数据与那些参考标准的光学横截面(例如显微照片)的测量结果互相关联来校准超声波检查系统。