Paper Title:
Numerical Simulation of Transient Temperature Fields in Solids Irradiated by Moving Gaussian and Donut Sources
  Abstract

This work presents a three-dimensional heat transfer model developed for laser material processing with a moving Gaussian and donut heat sources, using Comsol Multhiphysics 3.5 code. The laser beam, having a defined power distribution, strikes the surface of an opaque substrate of semi infinite length but finite width and depth moving with a uniform velocity in the positive axial direction. The solid dimension along the motion direction is assumed to be infinite or semi-infinite, while a finite width and thickness are considered. Thermal properties are considered temperature dependent. Surface heat losses toward the ambient are taken into account. The results are presented in terms of temperature profiles and thermal fields are given for some Biot and material thicknesses at a constant Peclet number.

  Info
Periodical
Defect and Diffusion Forum (Volumes 312-315)
Edited by
Andreas Öchsner, Graeme E. Murch and João M.P.Q. Delgado
Pages
959-964
DOI
10.4028/www.scientific.net/DDF.312-315.959
Citation
O. Manca, S. Nardini, D. Ricci, S. Tamburrino, "Numerical Simulation of Transient Temperature Fields in Solids Irradiated by Moving Gaussian and Donut Sources", Defect and Diffusion Forum, Vols. 312-315, pp. 959-964, 2011
Online since
April 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Nicola Bianco, Oronzio Manca, Sergio Nardini, Salvatore Tamburrino
Abstract:In this paper a three dimensional conductive field is analyzed and solved by means of the COMSOL Multiphysics code. The investigated...
1445
Authors: Aniruddha Ghosh, Somnath Chattopadhyaya
Other related topics
Abstract:Submerged Arc Welding process (SAW) is a high quality, very high deposition rate welding process. It has lot of social and economical...
2477
Authors: N. Bianco, Oronzio Manca, Sergio Nardini, Salvatore Tamburrino
Abstract:A three dimensional conductive field is analyzed and solved by means of the COMSOL Multiphysics code. The investigated work-pieces are made...
924
Authors: Li Sheng Zuo, Xing Quan Zhang, Liu San Chen, Jian Ping She, Huan Li, Wei Chen
Chapter 2: Mechanics Engineering, Dynamics and Systems, Manufacturing Design Applications
Abstract:Laser shock wave oscillation caused by lateral inertia effects of Hopkinson bar in large-diameter SHPB apparatus, and the geometry dispersion...
105
Authors: Oronzio Manca, Sergio Nardini, D. Ricci, S. Tamburrino
Abstract:A three dimensional conductive field is analyzed and solved numerically by means of a commercial code. The investigated work-pieces are made...
189