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Weld sequence optimization: the use of surrogate models for solving sequential combinatorial problems

By I. Voutchkov, A.J. Keane, A. Bhaskar and Tor M. Olsen

Abstract

The solution of combinatorial optimization problems usually involves the consideration of many possible design configurations. This often makes such approaches computationally expensive, especially when dealing with complex finite element models. Here a surrogate model is proposed that can be used to reduce substantially the computational expense of sequential combinatorial finite element problems. The model is illustrated by application to a weld path planning problem

Topics: QA75, TA
Year: 2005
OAI identifier: oai:eprints.soton.ac.uk:23248
Provided by: e-Prints Soton

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  1. (1984). A new finite element model for welding heat sources,
  2. (1973). A numerical thermo-mechanical model for the welding and subsequent loading of a fabricated structure,
  3. (1971). Analysis of thermal elastic–plastic stress and strain during welding by finite element method,
  4. (2002). Clamping and welding sequence optimization for minimizing cycle time and assembly deformation,
  5. (1985). Determination of stresses due to girth-butt welds in pipes,
  6. (2003). Effect of welding sequences on residual stresses,
  7. (1998). Efficient global optimization of expensive black box functions,
  8. (2002). Heuristics for single-pass welding task sequencing,
  9. (1934). in: Theory of Elasticity Engineering Societies Monograph,
  10. (1995). Introduction to Mathematical Programming, second ed.,
  11. (2001). Modelling for residual stresses and deformations due to welding and ‘‘Knowing what isnt necessary to do’’,
  12. (2000). Optimizing welding sequence with genetic algorithm,
  13. (1971). Thermal stress analysis of metals with temperature dependent mechanical properties, in:
  14. Welding distortion of a thin-plate panel structure, American Welding Society—Welding Research Supplement. Available from:
  15. (2000). Welding simulation using the finite element method, joining of geometries,
  16. (1972). Welding stresses with special reference to cracking, iiw Doc X-665-72,

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