Scaling invariance of fatigue crack growth in gigacycle loading regime

OBORIN, V.; BANNIKOV, M.V.; NAIMARK, O.B; PALIN-LUC, Thierry

Article dans une revue avec comité de lecture

Auteur

OBORIN, V.
249854 Institute of Continuous Media Mechanics of the RAS [ICMM]

BANNIKOV, M.V.
249854 Institute of Continuous Media Mechanics of the RAS [ICMM]

NAIMARK, O.B
249854 Institute of Continuous Media Mechanics of the RAS [ICMM]

PALIN-LUC, Thierry
164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]

URI

http://hdl.handle.net/10985/10516

DOI

10.1134/S106378501011026X

Date

2010

Journal

Pis'ma v Zhurnal Tekhnicheskoi Fiziki / Technical Physics Letters

Résumé

The role of the collective behavior of defect ensembles at the crack tip and the laws of fatigue crack propagation in R4 high-strength steel have been studied under conditions of symmetric tension-compression gigacycle loading at 20 kHz. At every stage of the fatigue crack growth, replicas from the sample side surface were taken and studied by the method of three-dimensional relief profilometry (using NewView interferometer profilometer) so as to study the scaling-invariant laws of defect-related structure evolution.

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