LOW-CYCLE FATIGUE LIFE PREDICTIONS FOR HOLLOW TUBES WITH AXIALLY LOADED AXISYMMETRICAL INTERNAL PROJECTIONS

被引:19
作者
GOWHARIANARAKI, AR
HARDY, SJ
机构
[1] Department of Mechanical Engineering, University College of Swansea
关键词
D O I
10.1243/03093247V262133
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The finite element method has been used to study the monotonic and cyclic elastic-plastic stress and strain characteristics of hollow tubes with axisymmetric internal projections subjected to monotonic and repeated axial loading. This paper compares finite element strain predictions with values estimated using simple notch stress-strain conversion equations for two geometries and a range of nominal stresses. From this study, an intermediate equation (m = 0.5) is suggested for low cycle fatigue life predictions. The results have been normalized with respect to material properties so that they can be applied to geometrically similar components made from other materials which can be represented by the same material models.
引用
收藏
页码:133 / 146
页数:14
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