Thermal simulation of pulsed direct laser interference patterning of metallic substrates using the smoothed particle hydrodynamics approach

被引：15

作者：

Demuth, Cornelius ^{[1
]}

Bieda, Matthias ^{[2
]}

Lasagni, Andres F. ^{[2
]}

Mahrle, Achim ^{[1
]}

Wetzig, Andreas ^{[2
]}

Beyer, Eckhard ^{[1
,2
]}

机构：

[1] Tech Univ Dresden, Inst Surface & Mfg Technol, D-01062 Dresden, Germany

[2] Fraunhofer Inst Mat & Beam Technol IWS Dresden, D-01277 Dresden, Germany

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2012年 / 212卷 / 03期

关键词：

Direct laser interference patterning; Nanosecond pulses; Process simulation; Smoothed particle hydrodynamics; FEM SIMULATION; SURFACES;

D O I：

10.1016/j.jmatprotec.2011.10.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work presents a new approach to the thermal modelling of direct laser interference patterning (DLIP). The spatial and temporal evolution of the temperature distribution within metallic substrates, which are irradiated by nanosecond pulses during the DLIP process, is computed by means of a smoothed particle hydrodynamics (SPH) method. The developed model considers the conversion of laser energy into heat within a very thin surface layer, heat conduction into the bulk material and the effect of latent heat during involved phase transformations. The importance of proper determination of characteristic SPH parameters and adequate spatial resolution of the computational domain on the accuracy of the numerical solution is discussed in detail. The computed temperature distributions are in good agreement with the results of a previously developed FEM model and correspond very well to simultaneously performed experimental investigations. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：689 / 699

页数：11

共 29 条

[1]

Baehr H.D., 2006, HEAT MASS TRANSFER, P115

[2]

Brunette D.M., 2005, INT C SERIES, V1284, P229

[3] Conduction modelling using smoothed particle hydrodynamics [J].