Investigation of Grade 45 steel under Low Cycle Tension-Compression and Torsion

被引：0

作者：

Daunys, M. ^{[1
]}

Cesnavicius, R. ^{[1
]}

机构：

[1] Kaunas Univ Technol, LT-44312 Kaunas, Lithuania

来源：

MECHANIKA 2011: PROCEEDINGS OF THE 16TH INTERNATIONAL CONFERENCE | 2011年

关键词：

low cycle tension-compression; low cycle torsion; stress strain curves; lifetime; grade; 45; steel; FATIGUE; STRESS;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The investigation results of low cycle strength and fatigue life of grade 45 steel under symmetrical (r = -1.0) tension-compression and torsion and asymmetrical (r = -0.75, -0.5) torsion are presented. Used testing technique and parameters of the stress strain curves and lifetime are given. The shear stress strain was analysed using the solid specimens of circular cross-section and it was determined, that influence of the stress gradient is non significant, if compared with the analysis of thin-walled tube specimens. Proposed analytical dependences for determination torsion strength and fracture parameters using tension-compression results. Proposed new method for calculation torsion fatigue life using tension-compression data. Theoretical conclusions was verified with experiments, which were performed with author's designed devices.

引用

页码：76 / 81

页数：6

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