Author： Grishchenko Alexey I.
Publisher： Edp Sciences
E-ISSN： 2261-236x|53|issue|01041-01041
ISSN： 2261-236x
Source： MATEC Web of conference, Vol.53, Iss.issue, 2016-04, pp. : 01041-01041
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Abstract
The account of tertiary (third) stage of creep is important for the failure analysis of structures. The correct description of third stage of creep is based on taking into account of damage accumulation process. An identification of the parameters of coupled creep-damage model leads to the optimization problem of finding the global minimum of a functional, having a complex, non-linear structure and a large number of local minimums. The Nelder–Mead method is applied to the solution to the multiparameter identification problem. The effectiveness and robustness of the applied approach are illustrated on examples of mechanical and civil engineering.
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