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Effect of Residual Stress and Microstructure on the Fatigue Crack Growth Behavior of Aluminum Friction Stir Welded Joints. [PDF]

Materials (Basel)
Guo Y, Li P.
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A review of fatigue crack growth resistance in the short crack growth regime

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2019
Abstract The resistance to the short-crack growth and the observed threshold behavior of short cracks are examined using the Unified Approach that is based on the two-parametric nature of fatigue. The fatigue crack growth is characterized by the two parameters, K max and Δ K .
K Sadananda, M Nani Babu, A K Vasudevan   +2 more
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Multiple-cracked fatigue crack growth by BEM

Computational Mechanics, 1995
The dual boundary element method is applied to the two-dimensional linear elastic analysis of fatigue problem of multiple-cracked body. For each crack, the traction integral equation is applied on one surface of the crack, while the usual displacement integral equation is used simultaneously on the other. General multiple crack growth problem is solved
Yan, A. M., Nguyen-Dang, H.
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Crack growth of physically small cracks

International Journal of Fatigue, 2007
This paper shows how, for physically small cracks, the unified crack growth model, also referred to as Unigrow, can be related to the generalized Frost and Dugdale crack growth model. We also show how this formulation can be used to predict the crack growth history of a range of experimental tests.
R JONES, L MOLENT, S PITT
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Crack Nucleation, Growth, and Arrest Under Subcritical Crack Growth

Transactions of the Indian Institute of Metals, 2015
Component failures occur by crack initiation, growth and fast or overload fracture. The energetics demands that the crack tip driving forces must exceed the material resistance to crack growth. Crack being a high energy defect cannot nucleate spontaneously. However, it can nucleate in the presence of applied and localized internal stresses.
K. Sadananda, A. K. Vasudevan
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Evaluation of the crack-growth resistance of ceramics in the stage of subcritical crack growth

Materials Science, 1996
We propose a procedure for the evaluation of the parameters of crack growth in ceramic materials based on the application of soft and rigid loading to a standard beam specimen with lateral notch. The kinetic diagrams of fracture of aluminooxide ceramics obtained as a result enable one to predict the durability of products made of this material under ...
O. M. Romaniv, B. D. Vasyliv
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Fatigue crack growth threshold and short crack growth in austenitic materials

International Journal of Pressure Vessels and Piping, 1996
Abstract The fatigue crack growth (FCG) and the FCG threshold behaviour of long cracks in 316 L(N) material have been determined at 550°C. For the FCG behaviour an influence of R-ratio on the slope of the Paris law trend line was found with higher FCG rates in the range of low ΔK values for example R = 0.5.
H. Huthmann, V.B. Livesey, G. Robert
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Growth of a fatigue crack. 3. Model of unstable crack growth

Strength of Materials, 1989
A quantitative model of unstable fatigue-crack growth is proposed on the basis of a determination of the specific plastic strain energy stored the distance X* from the crack tip. The model makes allowance for the energy irreversibly dissibated within the damage zone and the resistance of the material to brittle fracture during static loading. The model
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A fatigue crack growth threshold

Engineering Fracture Mechanics, 1992
Abstract Fatigue crack growth (FCG) threshold has been determined on Ti6A14V, Al 7475-T7351, quenched and tempered steel 24CrMo4 as well as on the Ni-base alloys Inconel 617 and Nicrofer 5219 Nb. The main objective of the studies was to prove the transferability of the experimentally determined FCG threshold to service type fatigue loading.
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Prediction of Crack Growth in High Temperature Components Using Creep Crack Growth and Fatigue Crack Growth Data

1987
Components of energy units in service are subjected to cyclic loading combined with dwell times and high temperatures. Crack growth which occurs at defects in such components is thought to be a combination of fatigue crack growth and creep crack growth.
W. Oberparleiter, P. Agatonovic
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