INFLUENCE OF THE TYPE OF STRESS-STRAIN STATE ON THE TRUE STRESS-STRAIN CURVE FOR THE ELASTOPLASTIC MATERIALS

被引：0

作者：

Bazhenov, V. G. ^{[1
]}

Osetrov, S. L. ^{[1
]}

Osetrov, D. L. ^{[1
]}

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

机构：

[1] Lobachevsky State Univ Nizhni Novgorod, Res Inst Mech, Prospekt Gagarina Gagarin Ave 23, Nizhnii Novgorod 603950, Russia

来源：

MATERIALS PHYSICS AND MECHANICS | 2016年 / 28卷 / 1-2期

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D O I：

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中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a description of the current status of research on deformation properties of elastoplastic materials under quasi-static loading. Based both on experimental and theoretical approach and on the developed method, true stress-strain curves were produced in the case of stretching of a cylindrical shell and a solid rod until fracture. The difference between produced curves for these types of specimen is shown for the first time for heterogeneous and non-uniaxial stress-strain state after beginning of the localization process of deformation. We show that the difference between the curves is inversely proportional to the volume rate of stress-strain state at the neck of a specimen.

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页码：53 / 56

页数：4

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