Imperial College London
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Dr T Ben Britton

Faculty of Engineering, Department of Materials

Visiting Reader
 
 
 
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Contact

 

+44 (0)20 7594 2634b.britton Website

 
 
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Location

 

B301Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Liu:2021:10.1016/j.ijfatigue.2021.106398,
author = {Liu, Y and Adande, S and Britton, TB and Dunne, FPE},
doi = {10.1016/j.ijfatigue.2021.106398},
journal = {International Journal of Fatigue},
pages = {1--19},
title = {Cold dwell fatigue analyses integrating crystal-level strain rate sensitivity and microstructural heterogeneity},
url = {http://dx.doi.org/10.1016/j.ijfatigue.2021.106398},
volume = {151},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Cold dwell fatigue remains an important life-limiting factor in aircraft engine titanium alloys. Microstructure-level creep and stress accumulation during each loading cycle are controlled by strain rate sensitivity. Here, an integrated experimental and computational framework is used to link crystal-level slip properties to microstructure-sensitive cold dwell debit of a forged rotor graded Ti-6Al-4V alloy. Slip strengths and anisotropic strain rate sensitivities are extracted from micro-pillar compression tests for different slip systems, incorporated within α+β microstructurally-faithful polycrystal representations. Dwell and non-dwell cyclic loading in alloy Ti-6Al-4V are investigated for two differing microstructures, and the cycles to failure predicted based solely on the crystal c-axis tensile strength, and the dwell debit quantified. The dwell effect is predicted to diminish to zero below a peak applied stress of about 790 MPa in the alloy studied.
AU  - Liu,Y
AU  - Adande,S
AU  - Britton,TB
AU  - Dunne,FPE
DO  - 10.1016/j.ijfatigue.2021.106398
EP  - 19
PY  - 2021///
SN  - 0142-1123
SP  - 1
TI  - Cold dwell fatigue analyses integrating crystal-level strain rate sensitivity and microstructural heterogeneity
T2  - International Journal of Fatigue
UR  - http://dx.doi.org/10.1016/j.ijfatigue.2021.106398
UR  - https://www.sciencedirect.com/science/article/pii/S0142112321002589?via%3Dihub
UR  - http://hdl.handle.net/10044/1/90819
VL  - 151
ER  -
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