Interaction between Local Plastic Strain and Multi-Scale Fatigue Crack Propagation Behavior in Titanium Alloy TC4

Shen Ye; Xian Cheng Zhang; Shan Tung Tu

doi:10.4028/www.scientific.net/AMM.853.51

Paper Titles

Effect of Maximum Temperature on the Thermal Fatigue Behavior of Superalloy GH536
p.28

Modification Strain-Based Failure Assessment Diagram for High Strength Pipeline Steel
p.33

A Prediction Model for Mode-III Fatigue Crack Growth
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Effect of Various Side Grooves on 3D Crack-Front J-Integral for CT Specimens
p.46

Interaction between Local Plastic Strain and Multi-Scale Fatigue Crack Propagation Behavior in Titanium Alloy TC4
p.51

Mean Stress and Ratcheting Corrections in Fatigue Life Prediction of Metals
p.57

A Modified Cumulative Damage Model for Fatigue Life Prediction under Variable Amplitude Loadings
p.62

An Empirical Life Prediction Method of Cold-Stretched Austenitic Stainless Steel
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Mechanical Behavior and Fatigue Performance of Carburized Steel Specimens
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 853Interaction between Local Plastic Strain and...

Interaction between Local Plastic Strain and Multi-Scale Fatigue Crack Propagation Behavior in Titanium Alloy TC4

Abstract:

Multi-scale Fatigue crack growth behavior of titanium alloy TC4 under different maximum stress was identified in the present work by using an in-situ fatigue testing system. Results showed that specimen tested at lower maximum stress exhibited longer fatigue life, since the small fatigue crack stage accounted for a larger fraction of the total fatigue life. Local deformation around fatigue crack was measured by digital image correlation (DIC) technique. The evolution of multi-scale fatigue crack was identified. Relationship between size of plastic zone and crack growth rate was identified.

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Periodical:

Applied Mechanics and Materials (Volume 853)

Pages:

51-56

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.853.51

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Online since:

September 2016

Authors:

Shen Ye, Xian Cheng Zhang, Shan Tung Tu*

Keywords:

Crack Growth Rate, Digital Image Correlation, Multi-Scale Fatigue Crack, Titanium Alloy

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