Skip to main content

Comparative analysis of three thermal fatigue experiments

Buy Article:

$51.00 plus tax (Refund Policy)

ABSTRACT

This paper presents an analysis of the ability of different criteria to predict fatigue crack initiation under thermal loading. More precisely the predictions of the number of cycles to crack initiation are compared with experimental results obtained using five different fatigue criteria in three types of thermal fatigue tests (namely the FAT3D, JRC and SPLASH test campaigns).

This analysis has revealed that:

• The conventional criteria based on equivalent strain variation substantially overestimate the lifespan of a structure subjected to thermal loading.

• A criterion making account for loading multiaxiality is required to estimate thermal fatigue life.

Three of the criteria studied give satisfactory results: the Zamrik criterion, the Park and Nelson criterion and a criterion taking hydrostatic pressure into consideration proposed by Amiable et al. The latter should be preferred for the accuracy of its results and the Zamrik criterion for its simplicity.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: finite element; low cycle fatigue; thermal fatigue

Document Type: Research Article

Publication date: 2008-09-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more