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2 D Computer Simulation of Laser-Generated Ultrasonic Wave

레이저 여기 초음파의 2차원 컴퓨터 시뮬레이션

  • Published : 2000.07.01

Abstract

A computer simulation technique for 2-dimensional laser generated ultrasonic waves was developed for visualization and investigation of ultrasonic propagation in solids. The technique is similar to a finite difference method (FDM) and a mass-particle model method, but uses a new nodal calculation method based on fundamental consideration of an elastic wave equation. By this method, the propagation behavior oflaser generated ultrasonic wave in thermoelastic and ablation mode is visualized and shows good agreement with previous experimental result or the numerical analysis result by Green function.

Keywords

Laser Generated Ultrasonic Wave;Finite Difference Method;Mass Particle Model Method;Thermoelastic Mode;Ablation Mode;Green Function

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