Fatigue Life Assessment on an Automotive Engine Exhaust Valve Eaton Corporation

Format:

Conference/Event

Author/Creator:

Pang, M.L., author.

Conference Name:

SAE 2006 World Congress & Exhibition (2006-04-03 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2006

Summary:

This paper presents the fatigue life assessment work on an engine exhaust valve subject to specified durability test cycles. Using valve stress (or strain) data from finite element methods, material fatigue data, and fatigue prediction models (id est SN approach and εN approach based on multi-axial Brown-Miller critical plane method), the valve life estimates were obtained and compared with the observed test data, which were in reasonable agreement. In addition, crack growth approach was used and valve crack propagation life including early stage growth was computed. Finally, a general discussion on three life estimates (id est fatigue total life, strain-life and crack growth life) was provided with their governing equation, supported by three real cases

Notes:

Vendor supplied data

Publisher Number:

2006-01-0977

Access Restriction:

Restricted for use by site license