Imperial College London
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ProfessorDavidNowell

Faculty of Engineering, Department of Mechanical Engineering

Chair in Machine Dynamics and Director of the VUTC
 
 
 
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Contact

 

+44 (0)20 7594 1458d.nowell Website

 
 
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Location

 

561City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Nowell:2018:10.1016/j.ijfatigue.2018.01.015,
author = {Nowell, D and Dragnevski, K and O'Connor, S},
doi = {10.1016/j.ijfatigue.2018.01.015},
journal = {International Journal of Fatigue},
pages = {20--26},
title = {Investigation of Fatigue Crack Models by Micro-scale Measurement of Crack Tip Deformation},
url = {http://dx.doi.org/10.1016/j.ijfatigue.2018.01.015},
volume = {115},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The paper describes displacement measurements taken in the vicinity of a fatigue crack tip using digital image correlation. In-situ loading is employed in a scanning electron microscope to get measurements very close to the tip. The results are compared to the usual elastic model of crack tip deformation and to the Christopher, James and Patterson model, which is critically discussed. It is shown that the use of an elastic model with a residual stress intensity caused by crack tip shielding gives a good representation of the experimental results.
AU  - Nowell,D
AU  - Dragnevski,K
AU  - O'Connor,S
DO  - 10.1016/j.ijfatigue.2018.01.015
EP  - 26
PY  - 2018///
SN  - 0142-1123
SP  - 20
TI  - Investigation of Fatigue Crack Models by Micro-scale Measurement of Crack Tip Deformation
T2  - International Journal of Fatigue
UR  - http://dx.doi.org/10.1016/j.ijfatigue.2018.01.015
UR  - http://hdl.handle.net/10044/1/55985
VL  - 115
ER  -
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