Fracture analysis of a camshaft made from nodular cast iron

被引：53

作者：

Bayrakceken, H. ^{[1
]}

Ucun, I. ^{[1
]}

Tasgetiren, S. ^{[1
]}

机构：

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

来源：

ENGINEERING FAILURE ANALYSIS | 2006年 / 13卷 / 08期

关键词：

camshaft; nodular graphite cast iron; stress analysis;

D O I：

10.1016/j.engfailanal.2005.11.001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 [机械工程];

摘要：

The camshaft is a shaft having some semi-oval protrusions which are designed to control the open and close intervals of the inlet and exhaust poppet valves in the gasoline and diesel engines. Rotation of the cam which takes its movement from the crankshaft via a chain or a trigger belt causes its profile to slide against the smooth flat closed end of a cylindrical member known as a follower. In this study, fracture analysis of a camshaft of an automobile engine is carried out. The analyzed camshaft is fractured after a very short period of usage of the car. For the determination of the failure reason, the microstructure and chemical compositions of the camshaft material are determined. Some fractographic studies are carried out to asses the fracture conditions. A stress analysis is also carried out by the finite element technique for the determination of highly stressed regions on the camshaft. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1240 / 1245

页数：6

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