Acoustical Science and Technology
Online ISSN : 1347-5177
Print ISSN : 1346-3969
ISSN-L : 0369-4232
Pulsed pressure wave propagating in narrow air gap surrounded by different-diameter spherical walls to use as an impulsive force for noncontact and nondestructive testing
Koji Aizawa
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JOURNAL OPEN ACCESS Advance online publication

Article ID: e25.49

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Abstract

Pulsed pressure waves propagating through a narrow air gap surrounded by spherical walls of different diameters were computationally and experimentally investigated to generate an impact force for noncontact and nondestructive testing. It was confirmed that with the proposed model, an impulse-like wave with peak positive pressure exceeding 10 kPa can be obtained with a gap width of 0.9 mm at a laser energy of 35 mJ.

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