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THE RELATION BETWEEN CRACK BLUNTING AND FATIGUE CRACK GROWTH RATES
Fatigue & Fracture of Engineering Materials & Structures, 1994Abstract— Previous work has shown that the inclusion of the strain energy released by crack blunting leads to an energy minimum for fatigue crack growth that can be used to predict stage II fatigue crack growth. The present work assumes a polynomial relation between crack blunting and crack extension to derive an expression for the rate of fatigue ...
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Crack Growth Rate Behavior of Ni Alloys
CORROSION 2000, 2000Abstract The stress corrosion crack growth rate of Alloy 182 weld metal and sensitized Alloy 600 was studied under highly controlled water chemistry conditions at 288 °C. This continuing program has found that the effects of corrosion potential, water chemistry, stress intensity, cold work, etc.
Peter L. Andresen +4 more
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International Journal of Materials and Product Technology, 2001
The finite deformation theory, an updated Lagrangian formulation (ULF), a 3D finite difference equation for heat transfer, and a two-stage geometrical equation for an obstruction-type chip breaker tool face were used to describe the oblique cutting process.
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The finite deformation theory, an updated Lagrangian formulation (ULF), a 3D finite difference equation for heat transfer, and a two-stage geometrical equation for an obstruction-type chip breaker tool face were used to describe the oblique cutting process.
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A Probabilistic Approach to Fatigue Crack Growth Rate
Journal of Engineering Materials and Technology, 1980A probabilistic model for fatigue crack growth proposed by K. P. Oh is modified in some respects. Under more natural assumptions than Oh’s it is derived that the rate of fatigue crack growth is proportional to some power of the range of the stress intensity factor. It is also shown that the exponent ranges from 2 to 4.
Akira Tsurui, Akito Igarashi
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Kinetics of crack growth in zirconium alloys (I): Temperature dependence of the crack growth rate
Journal of Applied Physics, 2009Delayed hydride cracking (DHC) tests were conducted on a cold-worked Zr–2.5Nb tube with hydrogen at different test temperatures ranging from 100 to 350 °C. Striation spacing corresponding to a critical hydride length increased with temperature, demonstrating that hydride cracking resistance is enhanced with temperature.
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Kinetics of crack growth in zirconium alloys (II): Stress dependence of the crack growth rate
Journal of Applied Physics, 2010Delayed hydride cracking tests were conducted on a cold-worked Zr-2.5Nb tube with hydrogen at different test temperatures ranging from 160 to 280 °C in the load increasing mode where an applied KI was increased step-wise by 0.5 MPa m1/2 from 4.5 MPa m1/2.
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Volume 1: Codes and Standards, 2007
It is still difficult to select the proper constants of crack growth rate corresponding to the loading condition for R-ratio has significant effect on crack growth rate. An unique crack growth rate equation, taking equivalent stress intensity factor range (ESIFR) as the driving force, has been examined for steels and as welded joints.
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It is still difficult to select the proper constants of crack growth rate corresponding to the loading condition for R-ratio has significant effect on crack growth rate. An unique crack growth rate equation, taking equivalent stress intensity factor range (ESIFR) as the driving force, has been examined for steels and as welded joints.
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Rate transitions in the fatigue crack growth of elastomers
Journal of Applied Polymer Science, 2008AbstractIt has been observed previously that cracks in elastomers under repeated strain initially grow rapidly from sharp cuts, but as the cracks proceed, the rate decreases to a steady value. This work examines these transitions from a sharp crack tip, introduced by a razor blade into a pure shear test piece, for a range of elastomers.
I. C. Papadopoulos +2 more
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The Analysis of Fatigue Crack Growth Rate Data
1979The analytical variables associated with the characterization of fatigue crack growth rate performance are discussed and the influence of these variables on predicted cyclic life is illustrated. It is shown that the analytical techniques chosen to process laboratory test results and to develop upper-bound design information can have a significant ...
W. G. Clark, S. J. Hudak
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On the Rate of Growth of Fatigue Cracks
Journal of Applied Mechanics, 1954F. A. McClintock, F. J. Ryan
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