MODELING OF LASER THERMOELASTIC GENERATION OF ULTRASOUND IN AN ORTHOTROPIC MEDIUM

被引：60

作者：

DUBOIS, M ^{[1
]}

ENGUEHARD, F ^{[1
]}

BERTRAND, L ^{[1
]}

CHOQUET, M ^{[1
]}

MONCHALIN, JP ^{[1
]}

机构：

[1] INST MAT IND,BOUCHERVILLE J4B 6Y4,PQ,CANADA

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 05期

关键词：

D O I：

10.1063/1.111101

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a numerical model that calculates the surface displacements generated by the absorption of a laser pulse by an orthotropic medium. This model solves the heat and acoustic wave equations using temporal Laplace and Fourier transformations. This model allows us to calculate the normal and in-plane displacements on the front or back surface of an orthotropic plate over a complete area and for virtually any time and beam profiles of the laser excitation. Numerical simulations are compared to experimental results obtained on an aluminum sample and on a graphite-epoxy plate. The experimental and numerical results are in good agreement.

引用

页码：554 / 556

页数：3

共 14 条

[1]

Auld B. A., 1990, ACOUSTIC FIELDS WAVE, V1-2

[2] THERMOELASTIC STRESS PRODUCTION IN SOLIDS [J].