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Development of nondestructive non-contact acousto-thermal evaluation technique for damage detection in materials
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10.1063/1.4749245
/content/aip/journal/rsi/83/9/10.1063/1.4749245
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/9/10.1063/1.4749245
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the NCATS experimental setup.

Image of FIG. 2.
FIG. 2.

Displacement amplitude across the ultrasonic horn during vibration.

Image of FIG. 3.
FIG. 3.

Displacement of the horn with increasing input power.

Image of FIG. 4.
FIG. 4.

NCATS time–temperature signatures at different input powers to the horn. Distance between horn and sample: 300 μm. Duration of excitation: 250 ms. Sample: Ti-6Al-4V.

Image of FIG. 5.
FIG. 5.

NCATS time–temperature signatures for increasing excitation time of the horn. Input power to the horn 1000 W. Distance between sample and horn: 200 μm. Sample: Ti-6Al-4V.

Image of FIG. 6.
FIG. 6.

Change in maximum temperature in the sample for varying distances between sample and the horn. Horn power settings: 1000 W and 800 W. Duration of excitation: 250 ms. Sample: Ti-6Al-4V.

Image of FIG. 7.
FIG. 7.

Maximum change in temperature with increasing plastic strain in Ti-6Al-4V.

Image of FIG. 8.
FIG. 8.

Composite strain-strain curve for Ti-6Al-4V sample.

Image of FIG. 9.
FIG. 9.

Maximum temperature in NCATS measurements on heat damaged composite samples with increasing power to the horn.

Image of FIG. 10.
FIG. 10.

Scanning electron microscope images of the heat damaged composite (exposed to 540 s).

Image of FIG. 11.
FIG. 11.

X-ray CT images of different LW sections at different thickness in the interior of the sample.

Image of FIG. 12.
FIG. 12.

X-ray CT images of different LT sections on the surface and interior of the sample.

Image of FIG. 13.
FIG. 13.

Position of the IR camera, acoustic horn, and the wheel component to image the crack.

Image of FIG. 14.
FIG. 14.

NCATS imaging of a crack in aluminum wheel component.

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/content/aip/journal/rsi/83/9/10.1063/1.4749245
2012-09-06
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Development of nondestructive non-contact acousto-thermal evaluation technique for damage detection in materials
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/9/10.1063/1.4749245
10.1063/1.4749245
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