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On Normalized Fatigue Crack Growth Modeling
Volume 2A: Structures, Safety, and Reliability, 2020Abstract Modeling of fatigue crack growth plays a key role in risk informed inspection and maintenance planning for fatigue sensitive structural details. Probabilistic models must be available for observable fatigue performances such as crack length and depth, as a function of time.
Glavind, Sebastian T.; id_orcid 0000-0003-1993-5124 +2 more
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A cohesive model of fatigue crack growth
International Journal of Fracture, 2001We investigate the use of cohesive theories of fracture, in conjunction with the explicit resolution of the near-tip plastic fields and the enforcement of closure as a contact constraint, for the purpose of fatigue-life prediction. An important characteristic of the cohesive laws considered here is that they exhibit unloading-reloading hysteresis. This
Nguyen, O. +3 more
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A Dislocation Model for Fatigue Crack Initiation
Journal of Applied Mechanics, 1981The slip band formed in a grain on the material surface is a preferential site for crack initiation during low strain fatigue of polycrystalline metals. The forward and reverse plastic flow within the slip band is modeled in the present study by dislocations with different signs moving on two closely located layers, and it is assumed that their ...
Tanaka, K., Mura, T.
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A model for fatigue crack propagation
Engineering Fracture Mechanics, 1975Abstract A model for fatigue crack propagation is presented which incorporates low cycle fatigue, mechanical properties and a microstructurally-associated process zone. Comparison of the model to published date for 4340 (hard and soft), a series of TRIP steels, Ti-6A1-4V, 2024-T6 and 300 grade maraging steel shows good agreement.
Stephen D. Antolovich +2 more
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A fatigue crack propagation model
Engineering Fracture Mechanics, 1984Abstract A model for fatigue crack propagation has been developed which incorporates mechanical, cyclic and fatigue properties as well as a length parameter. The latter can be associated with the microstructure of the material. The fatigue failure criterion is based on a measure of the dissipated plastic strain energy.
D. Kujawski, F. Ellyin
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A model for fatigue crack closure
Engineering Fracture Mechanics, 1984Abstract The phenomenon of fatigue crack closure has attracted continued interest over recent years. This paper concerns itself with one aspect of the phenomenon namely the effects of a single asperity on the crack face close to the crack tip and under dominantly plane strain Mode 1 loading conditions.
C.J. Beevers +3 more
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ADAPTIVE AND HIERARCHICAL MODELING OF FATIGUE CRACK PROPAGATION
34th Structures, Structural Dynamics and Materials Conference, 1993AbstractA methodology is developed to simulate adaptively and hierarchically fatigue crack growth in structural components. Cracks are modelled, by overlaying portions of the finite element mesh free of cracks with a discontinuous finite element field containing unconstrained double nodes along the discontinuity.
Fish, Jacob, Nath, Aditya
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A NOTE ON MODELLING SHORT FATIGUE CRACK BEHAVIOUR
Fatigue & Fracture of Engineering Materials & Structures, 1998Based upon experimental short fatigue crack growth data and adopting the Brown–Hobson model, new crack growth equations have been derived in an attempt to describe more precisely short fatigue crack growth behaviour that separates the physically small crack regime from the long crack regime.
Angelova, D, Akid, R
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A model of the environmentally affected growth of fatigue cracks
Journal of Applied Mathematics and Mechanics, 1998The authors discuss the processes of the damage accumulation and cracks growth under combination of the cylindrical loads and corrosion fatigue. The known correlations of equilibrium and balance of energy in the system ``body with cracks -- load'' are completed with the equations describing the processes of the damage accumulation near the crack edges ...
Bolotin, V. V., Shipkov, A. A.
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Modeling of fatigue crack closure in inclined and deflected cracks
International Journal of Fracture, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kibey, S. +2 more
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