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2002•Revista Mexicana de FísicaOpen access

Evaluation of an ultrasonic field effect on Pyrex compression fracture

G. Herrera, G. L. Gaete

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Abstract

The effect of an ultrasonic field (23 kHz) on surface fracture topography of Pyrex cylindrical samples tested under compression has been studied. The stress to fracture the sample under an ultrasonic field was lower. The clasically observed patterns in brittle fracture were found. Direct measurements of the surface roughness by profilometry showing that the Rq roughness is less in the tests with ultrasound suggest that the ultrasonic fields can affect the crack propagation dynamics improving the fracture process.

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What this paper is about

The effect of an ultrasonic field (23 kHz) on surface fracture topography of Pyrex cylindrical samples tested under compression has been studied. The stress to fracture the sample under an ultrasonic field was lower. The clasically observed patterns in brittle fracture were found. Direct measurements of the surface roughness by profilometry showing that the Rq roughness is less in the tests with ultrasound suggest that the ultrasonic fields can affect the crack propagation dynamics improving the fracture process.

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Available abstract

The effect of an ultrasonic field (23 kHz) on surface fracture topography of Pyrex cylindrical samples tested under compression has been studied. The stress to fracture the sample under an ultrasonic field was lower. The clasically observed patterns in brittle fracture were found. Direct measurements of the surface roughness by profilometry showing that the Rq roughness is less in the tests with ultrasound suggest that the ultrasonic fields can affect the crack propagation dynamics improving the fracture process.

Key concepts: Materials science, Ultrasonic sensor, Profilometer, Fracture (geology), Surface roughness, Composite material, Compression (physics), Surface finish

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