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Elementary Study of Laser Irradiation Effect on Thin Aluminum Sheet under SurfaceAirflow

Author: ZhangQiPeng
Tutor: JiangHouMan
School: National University of Defense Science and Technology
Course: Optical Engineering
Keywords: Effect of laser irradiation Thermo-elastic-plastic Surface air Numerical Simulation
CLC: TN249
Type: Master's thesis
Year: 2010
Downloads: 12
Quote: 0
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Abstract


Airflow conditions carried out by CDBoley et al Effect of laser irradiation of thin aluminum Experimental results show that the mechanical load of the air flow has important implications for the rupture of thin aluminum plate . The experiments for CDBoley , the use of numerical simulation method to study surface airflow under laser irradiation of the dynamic response of the thin aluminum . The main tasks are as follows: (1) describes the experimental results of CDBoley et al , research methods will be used in this article ; (2) general theoretical model that describes the dynamic response of solid materials under thermal loads , for this paper is to study the problems given specific thermoelastoplastic model ; (3) using ANSYS software, the laser irradiation of thin aluminum thermal response was simulated . Thin aluminum laser irradiation temperature field, and were compared with the results of the analytical model ; thermal parameters vary with temperature and thermal coupling effect on the temperature field simulation results . Without pressure loads thin aluminum deformation and stress distribution in depth comparison found that a 6000Pa the pressure load the thin aluminum deformation and stress distribution of very small . Preliminary view is that to reveal the airflow under laser irradiation response of thin aluminum , it is not the role of air simplifies constant pressure load , at least consider a thin aluminum formed protruding to the side of the airflow pressure spatial distribution characteristics of flow field .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser applications
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