Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781729182031
Total Pages : 26 pages
Book Rating : 4.1/5 (82 download)
Book Synopsis Assessment of Probability of Detection of Delaminations in Fiber-Reinforced Composites by : National Aeronautics and Space Adm Nasa
Download or read book Assessment of Probability of Detection of Delaminations in Fiber-Reinforced Composites written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-24 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delamination is one of the critical defects in composite materials and structures. An ultrasonic C-scan imaging technique which maps out the acoustic impedance mismatched areas with respect to the sample coordinates, is particularly well suited for detecting and characterizing delaminations in composites. To properly interpret the results, it is necessary to correlate the indications with the detection limits and probability of detection (POD) of the ultrasonic C-scan imaging technique. The baseline information on the assessment of POD of delaminations in composite materials and structures is very beneficial to the evaluation of spacecraft materials. In this study, we review the principle of POD, describe the laboratory set-up and procedure, and present the experimental results as well as assessment of POD of delaminations in fiber reinforced composite panels using ultrasonic C-scan techniques. Chern, E. J. and Chu, H. P. and Yang, J. N. Goddard Space Flight Center