Authors: Boljanović, Slobodanka 
Maksimović, Stevan
Carpinteri, Andrea
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: An analysis of crack propagation and a plasticity-induced closure effect
Journal: Scientific Technical Review
Volume: 60
Issue: 2
First page: 14
Last page: 19
Issue Date: 2010
Rank: M51
ISSN: 1820-0206
URL: http://www.vti.mod.gov.rs/ntp/rad2010/2-10/2/02.pdf
Abstract: 
In the present paper, a few computational models for the crack growth analysis are improved. The improvements consist of including the effect of the plasticity-induced crack closure, i.e. the effective stress intensity factor is computed through the finite element method in order to account the effect of plasticity-induced crack closure on fatigue crack growth. Thus, corrective factors for the effect of the plasticity-induced crack closure are determined here.
The improved models are noticed to provide a fairly good correlation with available experimental data. Furthermore, the calculated results show that the plasticity-induced crack closure has a significant effect on fatigue crack growth and flawed structure life.
Keywords: material fatigue | crack | fatigue crack | crack growth | technological improvements | plastification | calculation method | finite element method
Publisher: Military Technical Institute, Belgrade

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