[Kovove materialy - Metallic materials]
    Mon - December 10, 2018 - 11:31 No. of hits : 981177 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 36 (1998), Issue 3

Dislocation model for fatigue crack propagation of long cracks
PIPPAN, R., RIEMELMOSER, F. O.
vol. 36 (1998), no. 3, pp. 183 - 192

Abstract
The differences between the description of cyclic plasticity with a discrete dislocation model and the classical elasto-plastic continuum theory are studied. It is shown that both the dislocation model and the continuum mechanics lead to the same results at high stress intensity ranges (Paris regime) but they differ significantly for small stress intensity ranges. The conclusion of these results is that the characteristics of the near-threshold fatigue-crack-growth behavior is only explainable with a discrete dislocation model.

Key words
discrete dislocation model, Paris regime, fatigue-crack-growth behavior

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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