Three-dimensional temperature field model of thermally decomposing resin composite irradiated by laser

chen minsun; jiang houman; liu zejin

Volume 23 Issue 03

Mar. 2011

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chen minsun, jiang houman, liu zejin. Three-dimensional temperature field model of thermally decomposing resin composite irradiated by laser[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

chen minsun, jiang houman, liu zejin. Three-dimensional temperature field model of thermally decomposing resin composite irradiated by laser[J]. High Power Laser and Particle Beams, 2011, 23.

chen minsun, jiang houman, liu zejin. Three-dimensional temperature field model of thermally decomposing resin composite irradiated by laser[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

chen minsun, jiang houman, liu zejin. Three-dimensional temperature field model of thermally decomposing resin composite irradiated by laser[J]. High Power Laser and Particle Beams, 2011, 23.

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Three-dimensional temperature field model of thermally decomposing resin composite irradiated by laser

1.
College of Opto-Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China

Publish Date: 2011-03-15

Abstract

Abstract

Fundamental equations governing the temperature field of thermally decomposing resin composite irradiated by laser are derived from mass and energy conservation laws with the control volume method. The thermal decomposition of resin is described by a multi-step model. An assumption is proposed that the flow of pyrolysis gas is one-dimensional, which makes it possible to consider the influence of pyrolysis gas convective transport and realize the closure of the three-dimensional model without introducing mechanical quantities. In view of the anisotropy of resin composite, expressions of the thermal conductivities of partially pyrolyzed material are deduced, as well as the computing formula for the laser absorption coefficient of partially pyrolyzed material. The energy conservation equation
- laser irradiation,
- resin composite,
- three-dimensional model,
- thermal decomposition,
- convective transport

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