Creep process simulation considering pre-destruction stage and model identification

Autor: K. A. Agakhi, Yu. G. Basalov, V. N. Kuznetsov, L. V. Fomin
Jazyk: English<br />Russian
Rok vydání: 2009
Předmět:
Zdroj: Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 2(19), Pp 243-247 (2009)
Druh dokumentu: article
ISSN: 1991-8615
2310-7081
DOI: 10.14498/vsgtu711
Popis: It was suggested to define Rabotnov's function (damage function) from the differential equation of the first order for simulation of a pre-destruction stage in creep process. In this paper, the damage function is for the first time determined directly from a series of creep tests, independently of the formulated differential equation which, generally speaking, does not concord with the experimental data. A non-linear model of the creep process is suggested taking into consideration the rate increase stage, using an integral operator as Lebega's norm, and containing a damage function determined experimentally.
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