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A two-dimensional model for sensitivity studies on laser-generated ultrasound

Abstract : A two-dimensional simulation model is presented that, within certain limitative assumptions, calculates the displacements generated by the absorption of a laser pulse in the thermoelastic regime. This model solves the Christoffel equations in an axisymmetrical configuration (the laser excitation is supposed to have a gaussian surface profile) over an infinite plate of finite thickness presenting a cylindrical orthotropy. The resolution of these Christoffel equations is made in the Laplace and Hankel spaces. After the validation of this model by the confrontation of its predictions to experimental data, we present two applications of it concerning the related temporal convolutions occurring to produce the longitudinal precursor.
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Contributor : Franck Enguehard <>
Submitted on : Thursday, March 17, 2016 - 5:44:05 PM
Last modification on : Friday, January 8, 2021 - 11:49:23 AM


  • HAL Id : hal-01290218, version 1


Emmanuel Lafond, Franck Enguehard, Alain Cournoyer, Annie Tarrats, Jean-Paul Longuemard. A two-dimensional model for sensitivity studies on laser-generated ultrasound. 1995 World Congress on Ultrasonics, Sep 1995, Berlin, Germany. ⟨hal-01290218⟩



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