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Probing Reliability of Transport Phenomena Based Heat Transfer and Fluid Flow Analysis in Autogeneous Fusion Welding Process

DSpace at IIT Bombay

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Title Probing Reliability of Transport Phenomena Based Heat Transfer and Fluid Flow Analysis in Autogeneous Fusion Welding Process
 
Creator BAG, S
DE, A
 
Subject pool convection
transfer model
laser
algorithm
optimization
 
Description The transport phenomena based heat transfer and fluid flow calculations in weld pool require a number of input parameters. Arc efficiency, effective thermal conductivity, and viscosity in weld pool are some of these parameters, values of which are rarely known and difficult to assign a priori based on the scientific principles alone. The present work reports a bi-directional three-dimensional (3-D) heat transfer and fluid flow model, which is integrated with a real number based genetic algorithm. The bi-directional feature of the integrated model allows the identification of the values of a required set of uncertain model input parameters and, next, the design of process parameters to achieve a target weld pool dimension. The computed values are validated with measured results in linear gas-tungsten-arc (GTA) weld samples. Furthermore, a novel methodology to estimate the overall reliability of the computed solutions is also presented.
 
Publisher SPRINGER
 
Date 2011-08-29T17:24:18Z
2011-12-26T12:58:41Z
2011-12-27T05:49:04Z
2011-08-29T17:24:18Z
2011-12-26T12:58:41Z
2011-12-27T05:49:04Z
2010
 
Type Article
 
Identifier METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 41A(9), 2337-2347
1073-5623
http://dx.doi.org/10.1007/s11661-010-0272-9
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12145
http://hdl.handle.net/10054/12145
 
Language en