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Error analysis of forward and reverse heat conduction and convection calculations considering uncertainties in welding

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Title Error analysis of forward and reverse heat conduction and convection calculations considering uncertainties in welding
 
Creator BAG, S
DE, A
 
Subject finite-element-analysis
gas tungsten
fluid-flow
transfer model
arc welds
optimization
algorithm
parameters
pool
prediction
fusion welding
finite element method
fluid flow
genetic algorithm
 
Description Numerical models of fusion welding traditionally compute temperature field for a given set of welding conditions in a forward manner. The reliability of computed temperature profile depends on the accuracy of a number of model input parameters, values of which are uncertain in nature. Here, the authors show that a genetic algorithm (GA) assisted integrated numerical model, following either convection or conduction based calculations, can identify the suitable values of the uncertain model input parameters and in turn provide reliable computed results. Powered with GA, the integrated model is used further in a reverse manner to predict multiple sets of welding conditions for a target weld geometry. The convection based calculations have been able to provide more reliable multiple welding variables in reverse calculations.
 
Publisher MANEY PUBLISHING
 
Date 2011-08-18T04:38:31Z
2011-12-26T12:55:34Z
2011-12-27T05:41:17Z
2011-08-18T04:38:31Z
2011-12-26T12:55:34Z
2011-12-27T05:41:17Z
2009
 
Type Article
 
Identifier SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 14(7), 662-668
1362-1718
http://dx.doi.org/10.1179/136217109X12464549883376
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9893
http://hdl.handle.net/10054/9893
 
Language en