Nonisothermal motion of an elastoviscoplastic medium through a pipe under a changing pressure drop

被引：11

作者：

Burenin, A. A. ^{[1
]}

Kovtanyuk, L. V. ^{[2
]}

Panchenko, G. L. ^{[3
]}

机构：

[1] Russian Acad Sci, Inst Machinery & Met, Far Eastern Branch, Komsomolsk Na Amure 681005, Russia

[2] Russian Acad Sci, Inst Automat & Control Proc, Far Eastern Branch, Vladivostok 690041, Russia

[3] Vladivostok State Univ Econ & Serv, Vladivostok 690014, Russia

来源：

DOKLADY PHYSICS | 2015年 / 60卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

ELASTOPLASTIC MEDIUM; FLOW;

D O I：

10.1134/S1028335815090098

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The solution of a sequence of coupled problems of thermoelastic plasticity on the nucleation and development of medium flow in a cylindrical pipe in conditions of varying pressure drop and material heating due to friction on the pipe wall and subsequent stagnation of flow under slow load removal and cooling of the layer material is derived based on the theory of large elastoplastic deformations generalized for the nonisothermal case. The thermal and deformation processes are interrelated with the temperature dependence of the yield point. The conditions of nucleation of the viscoplastic flow and regularities of motion of the elastoplastic boundaries over the layer are noted, and the flow rates and large strains, both irreversible and reversible, are calculated.

引用

页码：419 / 422

页数：4

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