NDLI: Estimation of a source term in a quasi steady two-dimensional heat transfer problem: application to an electron beam welding

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Simulation of welding

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Numerical investigations of arc behaviour in gas metal arc welding using ANSYS CFX

The mechanism of penetration increase in A-TIG welding

Simulation of inverse heat conduction problems in fusion welding with extended analytical heat source models

Estimation of a source term in a quasi steady two-dimensional heat transfer problem: application to an electron beam welding

Experimental investigation of the hot cracking mechanism in welds on the microscopic scale

Numerical simulation of solidification and liquation behavior during welding of low-expansion superalloys

Development and application of software packages in welding engineering

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Welding mechanics for advanced component safety assessment

Modeling of friction stir welding process for tools design

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Estimation of a source term in a quasi steady two-dimensional heat transfer problem: application to an electron beam welding

Content Provider	Springer Nature Link
Author	Guo, Jia Lin Masson, P. Artioukhine, E. Loulou, T. Rogeon, P. Carin, M. Dumons, M. Costa, J.
Copyright Year	2011
Abstract	In previous work, we have analyzed the feasibility of the estimation for a source term S(x, y, z) in a transversal section. The present study is concerned with a two-dimensional inverse phase change problem. The goal is the estimation of the dissipated heat flux in the liquid zone (reconstruction of a source term in the energy equation) from experimentally measured temperatures in the solid zone. This work has an application in the electron beam welding of steels of thickness about 8 cm. The direct thermometallurgical problem is treated in a quasi steady two-dimensional longitudinal section (x, y). The beam displacement is normally in the y direction. But in the quasi steady simulation, the beam is steady in the study section. The sample is divided in the axial direction z in few sections. At each section, a source term is defined with a part of the beam and creates a vaporized zone and a fused zone. The goal of this work is the rebuilding of the complete source term with the estimations at each section. In this paper, we analyze the feasibility of the estimation. For this work, we use only the simulated measurements without noise.
Starting Page	126
Ending Page	134
Page Count	9
File Format	PDF
ISSN	2095025X
Journal	Frontiers of Materials Science in China
Volume Number	5
Issue Number	2
e-ISSN	20950268
Language	English
Publisher	SP Higher Education Press
Publisher Date	2011-05-18
Publisher Institution	Chinese Universities
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	estimation source term quasi steady the iterative regularization method Materials Science
Content Type	Text
Resource Type	Article
Subject	Materials Science

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