The Transient Temperature and Thermal Stresses on Metal Material Irradiated by Multi-Pulse Short Power

Abstract:

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Based on the non-Fourier law and thermo-elastic theory, the non-Fourier expressions of the temperature field and the thermal stress field of metal material under multi-pulse laser irradiation were deduced. Taken stainless metal and two pulse width (ω=4ps,4fs) as an example, The effects that distributions and variations of transient temperature and thermal stress are influenced by laser pulse width are studied. The results show that the magnitude and frequency of transient temperature and thermal stress are seriously affected by the laser pulse width. More narrower the laser pulse width, faster and higher the local temperature rise; as well as the thermal stresses.

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Periodical:

Edited by:

Han Zhao

Pages:

873-878

DOI:

10.4028/www.scientific.net/AMM.130-134.873

Citation:

G. Y. Xu "The Transient Temperature and Thermal Stresses on Metal Material Irradiated by Multi-Pulse Short Power", Applied Mechanics and Materials, Vols. 130-134, pp. 873-878, 2012

Online since:

October 2011

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$35.00

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