DRM Formulation For Axisymmetric
Laser-material Interactions
Author(s)
R. Gospavić, V. Popov, M. Srecković & G. Todorović
Abstract
The modeling of laser-material interaction using the boundary element dual
reciprocity method (BE-DRM) is presented. Thermal effects in the case of
cylindrical geometry for mono as well as multi layer structures were considered.
The different aspects of interaction up to the melting point of considered
materials are presented. The effect of temperature dependence of the absorption
coefficients on the process of laser heating was considered. The BEM
formulation is based on the fundamental solution for the Laplace equation. The
numerical results for spatial as well as temporal temperature distribution inside
the material bulk are presented. Two cases were considered: a mono-layer and a
multi layer case. In the case of a mono-layer structure DRM and DRM-MD
approaches were used, and the numerical results were compared with the
analytical ones. In the multi layer case only the DRM-MD approach was used.
Keywords: axisymmetric laser-material interaction, dual reciprocity method.
1 Introduction
The dual reciprocity method (DRM) was applied for laser-material interaction
analysis. Laser beams have a number of applications in different areas of science,
technology, and medicine. In the present work, thermal models of interaction in
case of cylindrical geometry and mono as well as multi layer structures were
considered. The spatial and temporal distributions of temperature field were
considered. The numerical model of laser-material interaction described here is
restricted only to heating effects of the targeted material without destructive and
Keywords
axisymmetric laser-material interaction, dual reciprocity method.
Related Book
Other papers in this volume
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