High-fidelity ultrasonic pulse-echo scheme for detecting delaminations in composite laminates

Composites Part B: Engineering

Volumn 30, Issue 5, 1999, Pages 433-441

  Wooh, S C ^a   Wei, C ^a  

^a Massachusetts Institute of Technology Cambridge   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DEFECTS; DELAMINATION; EPOXY RESINS; PLASTIC LAMINATES; ULTRASONIC IMAGING;

HOMOMORPHIC DECONVOLUTION; TEFLON FILM; ULTRASONIC PULSE ECHO IMAGING;

GRAPHITE FIBER REINFORCED PLASTICS;

EID: 0032598227     PISSN: 13598368     EISSN: None     Source Type: Journal    
DOI: 10.1016/S1359-8368(99)00017-7     Document Type: Article

References (10)

1. ASTM STP 568, Foreign object impact damage to composites. American Society for Testing and Materials, Philadelphia, PA, 1974.
2. ASTM STP 696, Nondestructive evaluation and flaw critically for composite materials. American Society for Testing and Materials, Philadelphia, PA, 1979.
3. Daniel IM, Wooh SC. Deformation and damage of composite laminates under impact loading. In: Mal AK, Rajapakse YDS, editors. Impact Response and Elastodynamics of Composites. ASME AMD-116, 1990, pp. 11-26.
4. Finn S.R., He Y.-F., Springer G.S. Delaminations in composite plates under transverse impact loads - experimental results. Composite Structures. 23:1993;191-204.
5. Wooh S.C., Daniel I.M. Three-dimensional ultrasonic imaging of defects and damage in composite materials. Materials Evaluation. 10:1994;1199-1206.
6. Grennberg A., Sandell H. Estimation of subsample time delay difference in narrowband ultrasonic echoes using the Hilbert transform correlation. IEEE Trans. Ultrasonics, Ferroelectrics and Frequency Control. 41:(5):1994;588-595.
7. Hull D., Kautz H., Vary A. Measurement of ultrasonic velocity using phase-slope and cross-correlation methods. Materials Evaluation. 43:(11):1985;1455-1460.
8. Wooh S.C., Daniel I.M. Real-time ultrasonic monitoring of fiber-matrix debonding in ceramic matrix composites. Mechanics of Materials. 17:(4):1994;379-388.
9. Childers D.G., Skinner D.P., Kemerait R.C. The cepstrum: a guide to processing. Proc. of the IEEE. 65:(10):1977;1428-1443.
10. Oppenheim A.V., Schafer R.W. Discrete-time signal processing. 1989;Prentice Hall, Englewood Cliffs, NJ.