Modeling of the effects of isotropic strengthening in nonproportional cyclic loading

Autor:	A. V. Pon'kin, M. V. Apaichev, I. A. Ivanov
Rok vydání:	1991
Předmět:	Austenite Materials science Mechanics of Materials business.industry Isotropy Solid mechanics Kinematics Structural engineering Strain hardening exponent Deformation (engineering) Constant (mathematics) business Intensity (heat transfer)
Zdroj:	Strength of Materials. 23:770-775
ISSN:	1573-9325 0039-2316
Popis:	On the basis of tests of the austenitic steel 03Kh21N32M3B with different programs of nonproportional loading including stages of various kinds of proportional cyclic loading and cyclic loading with constant strain intensity, the article analyzes the influence of the history of deformation on isotropic strengthening. It was established that in the material there exist several states of stabilization depending on the loading path, and to each of these states corresponds its own degree of isotropic strengthening. To express the experimentally observed effects, the article suggests determining equations in which isotropically kinematic strengthening is described on the basis of the evolution of a surface of “memory” in the space of plastic deformations. There is good agreement between the results of calculation and the experimental data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::27b7ff21af9501c8ddb7bc214ccd8693 https://doi.org/10.1007/bf00771280 Zobrazit plný text záznamu Full text from SpringerLink