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Local strains and mesoscopic mechanisms of crack growth in 25Kh1M1F steel

Local strains and mesoscopic mechanisms of crack growth in 25Kh1M1F steel Fatigue crack growth characterization requires non-homogeneous strain field measurements, the use of specific techniques is necessary. In this paper, the efficiency of the automated grid method for measuring in-plane displacements in the presence of high strain gradient is discussed. Vectors fields of displacement and strain gradient near crack tip have been studied: macrostrain localization, mesostrain concentration at a crack tip in a 25Kh1M1F steel, and micromechanisms of fracture on a crack front. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Strength, Fracture and Complexity IOS Press

Local strains and mesoscopic mechanisms of crack growth in 25Kh1M1F steel

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Publisher
IOS Press
Copyright
Copyright © 2010 by IOS Press, Inc
ISSN
1567-2069
eISSN
1875-9262
DOI
10.3233/SFC-2011-0115
Publisher site
See Article on Publisher Site

Abstract

Fatigue crack growth characterization requires non-homogeneous strain field measurements, the use of specific techniques is necessary. In this paper, the efficiency of the automated grid method for measuring in-plane displacements in the presence of high strain gradient is discussed. Vectors fields of displacement and strain gradient near crack tip have been studied: macrostrain localization, mesostrain concentration at a crack tip in a 25Kh1M1F steel, and micromechanisms of fracture on a crack front.

Journal

Strength, Fracture and ComplexityIOS Press

Published: Jan 1, 2010

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