A study of spur gear pitting formation and life prediction

被引：117

作者：

Aslantas, K ^{[1
]}

Tasgetiren, S ^{[1
]}

机构：

[1] Afyon Kocatepe Univ, Tech Educ Fac, Afyon, Turkey

来源：

WEAR | 2004年 / 257卷 / 11期

关键词：

spur gear; austempered ductile iron; pitting; fatigue; finite element analysis;

D O I：

10.1016/j.wear.2004.08.005

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this study, a numerical prediction on pitting formation is carried out in spur gear made from austempered ductile iron. General two-dimensional rolling sliding contact situations are considered for the development of the analytical model. The problem is assumed under linear elastic fracture mechanics and the finite element method is used for numerical solutions. Mixed mode stress intensity factors K-I and K-II for cyclic loading are evaluated and related to crack extension by a Paris-type equation. The maximum tangential stress criterion is used to determine the crack-turn-angle during crack propagation under cyclic loading. A series of experimental study is also carried out to determine the pitting formation life. Test specimens were first austenitized in salt bath at 900degreesC for 90 min after which they were quenched in salt bath at 325 and 425degreesC, for 60 min. A comparison is carried out between numerical and experimental results. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1167 / 1175

页数：9

共 22 条

[1]

Aslantas K., 2003, Turkish Journal of Engineering and Environmental Sciences, V27, P333

[2]

ASLANTAS K, 2002, J ENG SCI, V8, P33

[3]

*ASTM, 2001, ANN BOOK ASTM STAND, P159

[4] A fracture mechanics approach to high cycle fretting fatigue based on the worst case fret concept - I. Model development [J].