Damage in the complex low-cycle fatigue

被引：0

作者：

Bobyr, M. ^{[1
]}

Yakhno, B. ^{[1
]}

Rusinski, E. ^{[2
]}

Harnatkiewicz, P. ^{[2
]}

机构：

[1] Natl Tech Univ Ukraine, Kiev Polytech Inst, Inst Engn Mech, UA-03056 Kiev, Ukraine

[2] Wroclaw Univ Technol, Fac Mech Engn, PL-50371 Wroclaw, Poland

来源：

ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING | 2008年 / 8卷 / 03期

关键词：

damage; non-proportional low-cycle fatigue; aluminium alloy;

D O I：

10.1016/S1644-9665(12)60160-5

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A life prediction approach for a random multiaxial fatigue is proposed in the present paper. D16T aluminium alloy were tested under non-proportional loading (tension-compression, torsion). Cylindrical specimens were tested under different stress controlled trajectories in the plastic range. In additional, numerical method analysis such as finite method - FEM were used in the experiment. The additional damage energy for Al alloy D16T in the middle stabilized (average) cycle during low cycle fatigue for complex non-proportional loading square trajectory was also discussed in relation with fatigue life prediction. The aim of this paper is to examine the non-proportional low cycle fatigue life of D16T aluminium alloy which shows small additional damage stress, and also develop energetically damage model for complex non-proportional stress state during low-cycle fatigue for construction.

引用

页码：23 / 31

页数：9