CREEP-FATIGUE CRACK INITIATION IN 316L STAINLESS-STEEL - COMPARISON BETWEEN STRESS AND STRAIN CALCULATION METHODS

Citation
L. Laiarinandrasana et R. Piques, CREEP-FATIGUE CRACK INITIATION IN 316L STAINLESS-STEEL - COMPARISON BETWEEN STRESS AND STRAIN CALCULATION METHODS, Materials at high temperatures, 15(2), 1998, pp. 123-130
Citations number
10
Categorie Soggetti
Material Science
ISSN journal
09603409
Volume
15
Issue
2
Year of publication
1998
Pages
123 - 130
Database
ISI
SICI code
0960-3409(1998)15:2<123:CCII3S>2.0.ZU;2-I
Abstract
The French A16 guide developed at CEA Saclay proposes a methodology to estimate the stress and strain in the vicinity of the crack tip and a criterion to assess crack initiation by using these local parameters. A worked example for a CT specimen is developed and the results are c ompared with finite element analysis. Both calculation methods have th eir specific material behaviour models. In this text, the finite eleme nt constitutive model is presented. The material coefficients needed f or the A16 guide are then determined by means of numerical simulation on smooth specimens.