The Explanation of Stress Ratio Effect and Crack Opening Corrections for Fatigue Crack Growth in Metallic Materials

Rene C. Alderliesten

doi:10.4028/www.scientific.net/AMR.891-892.289

Paper Titles

Managing Fatigue from Corrosion Pits in Aircraft Structures
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Corrosion Fatigue Behaviour of a Common AZ91D Magnesium Alloy in Modified Simulated Body Fluid
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Three Ways of Sampling and Fatigue Test Results of Steel P92
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Effect of Environmental Corrosion on Fatigue Crack Growth Morphology: A Detailed Investigation of the Boundary between Fatigue and Corrosion Control Regimes
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The Explanation of Stress Ratio Effect and Crack Opening Corrections for Fatigue Crack Growth in Metallic Materials
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3D Numerical Study on how the Local Effective Stress Intensity Factor Range Can Explain the Fatigue Crack Front Shape
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Influence of Martensitic Phase on Microcrack Propagation in a Ferritic-Martensitic Steel
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Experimental and Numerical Simulation Study of Plasticity-Induced and Roughness-Induced Fatigue Crack Closure
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Micro Fatigue Crack Propagation Behavior in a Duplex Stainless Steel Studied Using In Situ SEM/EBSD Method
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 891-892The Explanation of Stress Ratio Effect and Crack...

The Explanation of Stress Ratio Effect and Crack Opening Corrections for Fatigue Crack Growth in Metallic Materials

Abstract:

This paper discusses the physical meaning of crack opening corrections in fatigue crack growth analyses proposed in the literature. To provide an explanation concerning the physical relevance of these corrections, an energy approach is proposed to evaluate fatigue loading conditions. Considering cyclic loading in terms of cyclic energy rather than in stress cycle, explains the origin of the crack opening corrections.

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Advanced Materials Research (Volumes 891-892)

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289-294

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https://doi.org/10.4028/www.scientific.net/AMR.891-892.289

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Online since:

March 2014

Authors:

Rene C. Alderliesten*

Keywords:

Crack Closure, Energy Balance, Fatigue, Stress Ratio Effect

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