Trans-Scale Analysis Approach of Fatigue Crack Behavior for Aluminum Alloy LC4 Plate

Tian Tian Wei; Xue Song Tang

doi:10.4028/www.scientific.net/AMM.750.51

Paper Titles

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Modeling of Low Cycle Behavior of P92 Steel Based on Cyclic Plasticity Constitutive Equations
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On the Utilization of Shear Modified GTN Damage Model in Cold Rolling
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Trans-Scale Analysis Approach of Fatigue Crack Behavior for Aluminum Alloy LC4 Plate
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Determination and Validation of Gurson-Tvergaard Model Parameters for Finite Element Simulation of Small Punch Test
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Fatigue-Fracture Solution of Iron Wire under Pseudo-Periodic Strain
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 750Trans-Scale Analysis Approach of Fatigue Crack...

Trans-Scale Analysis Approach of Fatigue Crack Behavior for Aluminum Alloy LC4 Plate

Abstract:

Material damage state is described by a restraining stress zone. Then, a macro/micro trans- scale fatigue crack growth model is established. The proposed model is used to simulate the whole fatigue process from a micro-defect to the final macroscopic fracture. Numerical calculations are performed. The fatigue test data for the LC4 aluminum alloy plate specimens are accurately re-produced by the present model. Furthermore, when the microscopic effects are taken into account, the scatter feature of the fatigue test data can also be reflected.

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Periodical:

Applied Mechanics and Materials (Volume 750)

Pages:

51-58

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.750.51

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Online since:

April 2015

Authors:

Tian Tian Wei, Xue Song Tang*

Keywords:

Fatigue Crack Propagation, Fatigue Life, Microscopic Effects, Restraining Stress Zone, S-N Curve, Strain Energy Density Factor, Stress Intensity Factor, Trans-Scale

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* - Corresponding Author

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