A Thermal-Fatigue Life Assessment Procedure for Components under Combined Temperature and Load Cycling Tenneco Automotive Company, Limited

Format:

Conference/Event

Author/Creator:

Wei, Wei, author.

Contributor:

Konson, Dmitri

Lin, Shengbin

Luo, Limin

Yang, Fulun

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

High-temperature thermal-mechanical systems are considered as an indispensable solution to modern vehicle emission control. Such systems include advanced engines, manifolds, thermal regeneration systems, and many other systems. Creep, fatigue, oxidation, or their combinations are the fundamental underlying material degradation and failure mechanisms in these systems subjected to combined thermal and mechanical loadings. Therefore, the basic understanding and modeling of these mechanisms are crucial in engineering designs.In this paper, the state-of-the-art methods of damage/failure modeling and life assessment for components under thermal-fatigue loading, are reviewed first. Subsequently, a new general life assessment procedure is developed for components subjected to variable amplitude thermal- and mechanical- loadings, with an emphasis on hold-time effect and cycle counting. Finally, an example is given to demonstrate the hold-time effect on the durability of the V-shape specimens subjected to thermal cycling, and another is provided to illustrate a new cycle counting procedure suitable for loading data with temperature variation

Notes:

Vendor supplied data

Publisher Number:

2013-01-0998

Access Restriction:

Restricted for use by site license