Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. EPFL thesis
  4. Non-linear model and finite element simulation of the selective laser sintering process
 
doctoral thesis

Non-linear model and finite element simulation of the selective laser sintering process

Kolossov, Serguei  
2005

This work is dedicated to research on the Selective Laser Sintering (SLS) process. The problem has been intensively investigated by many research groups. A number of physical phenomena observed in SLS are studied. There is, however, no comprehensive understanding of the true process nature and no solid theory of the SLS process has been established up to date. In this thesis, a theoretical model of the process has been developed. This model considers the laser-matter interaction, the non-linear heat diffusion and the phase transformations. The evolution of the material properties due to the sintering phenomena is analyzed by a microscopic sub-model. For solving the governing equations a numerical method based on finite element analysis has been proposed. A combination of non-conformal adaptive mesh for space discretization with a Chernoff's scheme for time discretization has been used. The results of the numerical simulations have been compared to the experimental results. The temperature field evolution predicted by the model is validated by experimental measurements performed with an infra-red camera.

  • Files
  • Details
  • Metrics
Type
doctoral thesis
DOI
10.5075/epfl-thesis-3178
Author(s)
Kolossov, Serguei  
Advisors
Glardon, Rémy  
•
Boillat, Eric  
Jury

Jacques Giovanola, Jean-Pierre Kruth, Dimos Poulikakos, Valerio Romano

Date Issued

2005

Publisher

EPFL

Publisher place

Lausanne

Public defense year

2005-02-10

Thesis number

3178

Total of pages

109

EPFL units
LGPP  
Faculty
STI  
Section
STI-SGM  
School
IPR  
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/212545
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés