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Ecuaţiile constitutive macroscopice ale proceselor monotone termovâscoelastoplastice

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dc.contributor.author SVEATENCO, N.
dc.date.accessioned 2019-04-13T11:09:03Z
dc.date.available 2019-04-13T11:09:03Z
dc.date.issued 2014
dc.identifier.citation SVEATENCO, N. Ecuaţiile constitutive macroscopice ale proceselor monotone termovâscoelastoplastice. In: Meridian Ingineresc. 2014, nr. 1, pp. 60-67. ISSN 1683-853X. en_US
dc.identifier.issn 1683-853X
dc.identifier.uri http://repository.utm.md/handle/5014/1883
dc.description.abstract Sistemul de ecuaţii constitutive macroscopice obţinut permite să se descrie procesele monotone compuse şi neizoterme de deformare în baza încercărilor proporţionale şi izoterme ale tuburilor cu pereţi subţiri la tracţiunea axială cu presiune internă. Condiţia de curgere propusă se determină prin descompunerea deviatorului deformaţiilor elastice al subelementului după tangenta şi după secanta la traiectoria deformării ireversibile. În rezultat concepţia de trecere continuă a materialului de la starea reversibilă la cea ireversibilă se foloseşte fără restricţii asociate cu noţiunea de suprafaţă de curgere. en_US
dc.description.abstract The obtained macroscopic constitutive equations allows to describe processes of the non-isothermal complex monotonous loading on the basis of data received by proportional and isothermal tests of the thin-walled tubes strained by axial force and internal pressure. The proposed yield condition is defined by the decomposition of the elastic deformation deviator of subelement on the tangent and on the secant to the irreversible deformation trajectory. As a result the concept of continuous transition of material from the reversible state to irreversible is used without restrictions associated with the notion of the yield surface. en
dc.description.abstract Le système d'équations constitutives macroscopiques obtenus permet de décrire les processus monotones complexes non-isothermes de chargement sur la base des données reçues par les essais proportionnelles et isothermes de tubes à paroi mince de traction axial et de la pression interne. La condition d'écoulement plastique proposée est définie par la décomposition du déviateur des déformations élastiques du sous-élément sur la tangente et sur la sécante à la trajectoire de déformation irréversible. En conséquence, le concept de transition continue d'un matériau de l'état réversible à irréversible est utilisé sans restrictions liées à la notion de la surface d'écoulement. fr
dc.description.abstract Полученная система макроскопических определяющих уравнений позволяет описать неизотермические сложные монотонные процессы деформирования на основе опытов на изотермическое пропорциональное нагружение тонкостенных трубчатых образцов осевой силой и внутренним давлением. Предложенное условие текучести определяется разложением девиатора упругих деформаций подэлемента по касательной и секущей к траектории необратимого деформирования. В результате концепция перехода материала из обратимого состояния в необратимое используется без ограничений, связанных с понятием поверхности текучести. ru
dc.language.iso ro en_US
dc.publisher Tehnica UTM en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject macroscopic constitutive equations en_US
dc.subject thermoviscoelastoplastic monotonous processes en_US
dc.subject ecuaţii constitutive macroscopice en_US
dc.subject procese monotone termovâscoelastoplastice en_US
dc.title Ecuaţiile constitutive macroscopice ale proceselor monotone termovâscoelastoplastice en_US
dc.title.alternative Macroscopic constitutive equations of the thermoviscoelastoplastic monotonous processes en_US
dc.title.alternative Équations constitutives macro-scopiques de processus monotones thermovisco-élastiqueplastique en_US
dc.title.alternative Макроскопические определяющие уравнения монотонных термовязко-упругопластических процессов en_US
dc.type Article en_US


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