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Influence of Material Parameters on Plasticity Induced Crack Closure
Key Engineering Materials, 2009Plasticity Induced Crack Closure (PICC) is an important fatigue phenomenon affecting crack growth under cyclic loading, which makes important to consider it in the design of components. In this paper a parametric study that correlates elastic-plastic material parameters with plasticity induced crack closure (PICC) is presented.
Dulce Maria Esteves Rodrigues +2 more
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Dynamic Analysis of Plasticity-Induced Fatigue Crack Closure
1989Crack closure during fatigue crack propagation is a phenomenon widely investigated in the last years by experimental means. Researches have achieved the knowledge of the different causes of the problem: the roughness-induced crack closure, the oxide -induced crack closure, the compressive stresses in the plastic zone near the crack tip produced by ...
J. Llorca, V. Sanchez-Galvez
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Three-Dimensional aspects of plasticity-induced fatigue crack closure
Engineering Fracture Mechanics, 1989A three-dimensional elastoplastic finite element analysis of fatigue crack growth and closure in a center-crack tension specimen was performed in order to investigate the crack opening stress as a function of specimen thickness under constant amplitude loading conditions. Elastic-perfectly plastic conditions were assumed and cycle loading was kept at R
R.G. Chermahini +3 more
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Fatigue & Fracture of Engineering Materials & Structures, 2018
AbstractIn the present work, comprehensive investigation of both theoretical analysis and numerical simulation was carried out to investigate the plastic mismatch effect on plasticity induced crack closure (PICC) behavior and effective fatigue crack tip driving force.
Xiao‐Xiong Song +4 more
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AbstractIn the present work, comprehensive investigation of both theoretical analysis and numerical simulation was carried out to investigate the plastic mismatch effect on plasticity induced crack closure (PICC) behavior and effective fatigue crack tip driving force.
Xiao‐Xiong Song +4 more
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Plasticity induced crack closure in Middle‐Crack Tension specimen: numerical versus experimental
Fatigue & Fracture of Engineering Materials & Structures, 2010ABSTRACTNumerical studies played a major role in the current understanding of plasticity induced crack closure (PICC), however it is well known that the numerical models simplify the reality by considering discrete crack propagations, relatively high fatigue crack growth rates, sharp cracks and that propagation occurs at a well‐defined load.
F.V. ANTUNES +3 more
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Characterisation of plasticity-induced closure––crack flank contact force versus plastic enclave
Engineering Fracture Mechanics, 2003Abstract This paper presents some results from a totally new and powerful fusion between automated, digital photoelastic techniques and mathematical analysis of a crack experiencing closure. In essence, real-time photoelastic stress field data is acquired and fitted to a Muskhelishvili complex potential model of a loaded crack experiencing closure ...
M.N. James +3 more
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Plasticity Induced Fatigue Crack Closure
1988Experimental measurements of plasticity-induced crack closure related factors were made on the aluminum alloy 7091-T7E69 using high resolution microscopy techniques. Two stress intensity factors were examined at a stress ratio of 0.1. The length of open crack as a function of load magnitude and the load required to open the crack to its tip were ...
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Estimation of plasticity-induced crack closure in a pre-existing plastic zone
International Journal of Fatigue, 1996Abstract To estimate the plasticity-induced crack closure in a pre-existing plastic zone using Newman's strip-yield model, the interactions between the crack plasticity and the pre-existing plasticity must be known. In the current study, the total plasticity of a fatigue crack propagating in a pre-existing overload plastic zone and a notch plastic ...
C HOU, J CHARNG
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Tri-dimensional numerical modelling of plasticity induced fatigue crack closure
Engineering Fracture Mechanics, 2008Fatigue crack closure has been studied numerically with 2D finite element models as alternative to experimental methods. In a few cases fatigue crack closure behaviour has been analyzed with tri-dimensional models. In this work, a compact C(T) aluminium specimen has been modelled tri-dimensionally.
A. Gonzalez-Herrera, J. Zapatero
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A numerical study of fatigue crack closure induced by plasticity
Fatigue & Fracture of Engineering Materials & Structures, 2004ABSTRACTCrack closure delays the intrinsic mechanisms responsible for crack growth, therefore, it must be considered in fatigue crack growth modelling. The objective of this work is to develop a numerical procedure to predict crack closure induced by plasticity.
F. V. ANTUNES +3 more
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