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Analysis and optimization of weakly coupled thermoelastoplastic systems with applications to weldment design
Author(s) -
Michaleris Panagiotis,
Tortorelli Daniel A.,
Vidal Creto A.
Publication year - 1995
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620380803
Subject(s) - sensitivity (control systems) , finite element method , implementation , mathematical optimization , service life , optimal design , engineering design process , process (computing) , computer science , mathematics , mechanical engineering , engineering , structural engineering , electronic engineering , machine learning , programming language , operating system
A systematic approach for the design of weakly coupled thermoelastoplastic systems is presented. The Newton–Raphson iteration method is used in the solution process so that analytic design sensitivity formulations may be efficiently derived via the direct differentiation technique. The derived formulations are suitable for finite element implementations. Analysis and sensitivity analysis capabilities are combined with numerical optimization to form an optimum design algorithm. To demonstrate the algorithm, we optimally design a weldment with respect to manufacturing and service life aspects.