Laser-Based Ultrasonics on Gr/Epoxy Composite a Systems Analysis
dc.contributor.author | Tittmann, B. | |
dc.contributor.author | Linebarger, R. | |
dc.contributor.author | Addison, R. | |
dc.date | 2018-02-14T04:43:57.000 | |
dc.date.accessioned | 2020-06-30T06:35:36Z | |
dc.date.available | 2020-06-30T06:35:36Z | |
dc.date.copyright | Sun Jan 01 00:00:00 UTC 1989 | |
dc.date.issued | 1989 | |
dc.description.abstract | <p>Critical issues are examined in the application of laser generation and detection of ultrasound to the inspection of large area air-frame composites. Among these issues are surface roughness, signal-to-noise ratio, insensitivity to the path length between the part and detector, and wide-band versus narrow-band generation. Supporting experiments are reported on broad-band and narrow-band generation in Gr/Epoxy panels and angular reflectance measurements on painted and unpainted Gr/Epoxy. On the basis of these measurements, a laser-in/laser-out systems analysis is carried out for a 10 mm diameter delamination about 1 cm deep. The analysis assumes that a Spherical Fabry-Perot interferometer is used for detection and a 10 nsec laser pulse with a peak power of 13 MW/cm2 for generation. The estimates indicate a S/N ≈ 20 dB for a detection probe laser power of about 400 mW.</p> | |
dc.format.mimetype | application/pdf | |
dc.identifier | archive/lib.dr.iastate.edu/qnde/1989/allcontent/64/ | |
dc.identifier.articleid | 1940 | |
dc.identifier.contextkey | 5783917 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | qnde/1989/allcontent/64 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/59435 | |
dc.language.iso | en | |
dc.relation.ispartofseries | Review of Progress in Quantitative Nondestructive Evaluation | |
dc.source.bitstream | archive/lib.dr.iastate.edu/qnde/1989/allcontent/64/1989_Tittmann_LaserBased.pdf|||Sat Jan 15 01:21:36 UTC 2022 | |
dc.source.uri | 10.1007/978-1-4613-0817-1_64 | |
dc.subject.disciplines | Acoustics, Dynamics, and Controls | |
dc.title | Laser-Based Ultrasonics on Gr/Epoxy Composite a Systems Analysis | |
dc.type | event | |
dc.type.genre | article | |
dspace.entity.type | Publication | |
relation.isSeriesOfPublication | 289a28b5-887e-4ddb-8c51-a88d07ebc3f3 |
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