STRESS-FIELD INTENSITY APPROACH FOR PREDICTING FATIGUE LIFE

Authors
Citation
Wx. Yao, STRESS-FIELD INTENSITY APPROACH FOR PREDICTING FATIGUE LIFE, International journal of fatigue, 15(3), 1993, pp. 243-245
Citations number
6
Categorie Soggetti
Material Science","Engineering, Mechanical
ISSN journal
01421123
Volume
15
Issue
3
Year of publication
1993
Pages
243 - 245
Database
ISI
SICI code
0142-1123(1993)15:3<243:SIAFPF>2.0.ZU;2-H
Abstract
In this paper a new design approach for predicting fatigue life-the st ress field intensity approach-is presented from the point of view of m acromechanics on the basis of the mechanism of fatigue damage of metal s. In this new approach the stress field intensity over the local regi on of damage, instead of the stress peak value as in the local stress- strain approach, was taken as the parameter with which to measure the fatigue strength of structures. Many fatigue phenomena, which the nomi nal stress approach and the local stress-strain approach could not exp lain, can be explained reasonably in this new approach.