265
Fig. 5: Shearography image of stabilized honeycomb part showing disbonds and potted honeycomb
repairs (Data provided by the Material Physics & NDE Laboratory at The Aerospace Corporation, S. Kenderian)
4. Conclusions
There is a long list of NDT methods and sub techniques that are applicable for composite testing. No
one method currently has ability to meet all the needs for the composite integrity assessment.
Historically focused on defect, emerging technology work is in areas of health monitoring and
materials mechanical properties characterization. As critical composite structures become part of
commercial use such as new Boeing 787, additional developments will be needed to enable
economical, full mechanical integrity characterization of these systems.
5. References
[1] George Lubin, Handbook of Composites, Van Nostrand Reinhold Co, London 1999
[2] Joseph C. Salamone, Editor-in Chief, Concise Polymeric Materials Encyclopedia
, CRC press,
New York 2001
[3] Serope Kalpakjian, Steven R. Schmid, Manufacturing Engineering and Technology
, Prentice
Hall, Uper Saddle River, NJ, Fourth Edition
[4] B.B. Djordjevic, Henrique Reis, editors, G. Birnbaum, B. A. Auld, Technical editors, "Sensors
for Materials Characterization, Processing, and Manufacturing" ASNT Topics on NDE Vol. 1
,
published by ASNT, Columbus OH, 1998.
[5]
B.B. Djordjevic, "Advanced Ultrasonic Probes for Scanning of Large Structures", Proc.
Ultrasonic International 93 Vienna, Austria, July 1993, Pub. Butterworth Heinemann 1993
[6] B. Boro Djordjevic, D. Cerniglia, “Remote Non-contact Testing of Aircraft Structures” 2001
USAF Aircraft Structural Integrity Program Conference, 10-13 December 2001, Williamsburg
VA
[7]
D. Cerniglia, K. Y. Jhang, and B. B. Djordjevic “Non-Contact Ultrasonic testing of Aircraft
Lap Joints” 15
th
Worl Conference on NDT, , Rome, Italy, Editor AIPnD, NDT.net October
2000