Nondestructive Evaluation of Rayleigh Pitch-Catch Contact Ultrasound Waves on Impacted-Damaged Composites

Abstract:

Article Preview

In particular, CFRP (carbon fiber reinforced plastics) composite materials have found wide applicability because of their inherent design flexibility and improved material properties. CFRP composites were manufactured from uni-direction prepreg sheet in this paper. However, impacted composite structures have 50-75% less strength than undamaged structures. It is desirable to perform nondestructive evaluation to assess material properties and part defect in order to ensure product quality and structural integrity of CFRP. In this work, a CFRP composite material was nondestructively characterized and a pitch-catch technique was developed to measure impacteddamaged area using an automated-data acquisition system. Also one-sided mode was performed to scan defect both manual contact measurement and an immersion tank. It is found a pitch-catch signal was found to be more sensitive than normal incidence backwall echo of longitudinal wave to subtle flaw conditions in the composite, including fiber orientation, low level porosity, ply waviness, and cracks. The paper describes the depth of the sampling volume with the head-to-head miniature Rayleigh probes and also ultrasonic C-scan images are acquired experimentally using one-sided measurement and a conventional scanner.

Info:

Periodical:

Edited by:

S. Itoh and K. Hokamoto

Pages:

267-272

Citation:

J. W. Park et al., "Nondestructive Evaluation of Rayleigh Pitch-Catch Contact Ultrasound Waves on Impacted-Damaged Composites", Materials Science Forum, Vol. 566, pp. 267-272, 2008

Online since:

November 2007

Export:

Price:

$38.00

[1] Adachi, T., Ujihashi, S. and Matsumoto ,H. Impulsive Response to a Finite Circular Cylindrical Shell Subjected to Waterhammer Waves, Bulltetin of JSME(1986), 29(249), 737-742.

DOI: https://doi.org/10.1299/jsme1958.29.737

[2] Advanced material committee: Advanced materials Hand Book. (1988) , HwanSun in Japan No. 45.

[3] Challenger, K. D. The Damage Tolerance of Carbon Fiber Reinforced Composites-A workshop summary, (1986) Composite Struct., 295-318.

DOI: https://doi.org/10.1016/0263-8223(86)90025-5

[4] Cho, C. D. and Zhao, G. P, Dynamic Response and Damage of Composite Shell Under Impact, (1999) KSME Int. J. 13(9), 596-608.

DOI: https://doi.org/10.1007/bf03184570

[5] Cho, C. D., Zhao, G. and Kim, C. B., Nonlinear Finite Element Analysis of Composite Shell Under Impact, (2000), KSME Int. J., 14(6), 666-674.

DOI: https://doi.org/10.1007/bf03184442

[6] Garrett, K.W. and Bailey, J.E., Multiple transverse failure in 90 degree cross-ply laminate of a glass fiber-reinforced polyester, (1997), J. Mat. Sci., 12, 157-168.

DOI: https://doi.org/10.1007/bf00738481

[7] Greszczuk, L.B. and Chao, H., Impact Damage in Graphite-Fiber-Reinforced Composites, (1977), ASTM STP 617, ASTM. Philadelphia, 389-408.

[8] Hankook Fiber Composites, (2001). Was Provided by Hankook Fiber Co.

[9] Hong, S., et al., On the Relationship Between Impact Energy and Delamination area, (1989), Experimental Mechanics, 29(2), 115-120.

[10] Goebble K., Structure analysis by scattered ultrasonic radiation, in Research Techniques in Nondestructive Testing, Vol. IV, 1980, CH. 4.

[11] Olympus NDT, Inc., vendor of Staveley/QualCorp miniature potted angle beam transducers.

Fetching data from Crossref.
This may take some time to load.