Imperial College London
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DrJosephCorcoran

Faculty of Engineering, Department of Mechanical Engineering

Honorary Lecturer
 
 
 
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Contact

 

joseph.corcoran

 
 
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Location

 

563City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Corcoran:2018:10.1016/j.ijmecsci.2018.02.041,
author = {Corcoran, J and Davies, C},
doi = {10.1016/j.ijmecsci.2018.02.041},
journal = {International Journal of Mechanical Sciences},
pages = {179--188},
title = {Monitoring power-law creep using the failure forecast method},
url = {http://dx.doi.org/10.1016/j.ijmecsci.2018.02.041},
volume = {140},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Creep is considered to be the life limiting damage mechanism in many load bearing high temperature components. A range of different parameters determine the creep life of a component, many of which are unlikely to be known to sufficient accuracy to enable satisfactory estimation of remnant life. Instead,the integrity of a component shouldbe established through direct measurement of the response of the component  to  the  operating  conditions.  Creep  deformation  is  shown  to  be  a  positive  feedback mechanism; anincreasein strain leadsto an increasing strain rate. It has recently been shown that as a consequence of positive feedback the Failure Forecast Method, a generalised framework for predicting time to criticality based on rates of change of damage, may beapplied for remnant life calculations. A range of strain rate based assessments have been proposed in the literature but it is proposed that the Failure  Forecast Method unifies many of these techniques and provides  additional insight into creep behaviour by virtue of the underlying positive feedback. The methodology has been demonstrated using experiment datasets that are  pertinent to creep in high temperature pressure  vessels and piping; it is shown that failure times are accurately predicted shortly after the minimum creep strain rate.
AU  - Corcoran,J
AU  - Davies,C
DO  - 10.1016/j.ijmecsci.2018.02.041
EP  - 188
PY  - 2018///
SN  - 0020-7403
SP  - 179
TI  - Monitoring power-law creep using the failure forecast method
T2  - International Journal of Mechanical Sciences
UR  - http://dx.doi.org/10.1016/j.ijmecsci.2018.02.041
UR  - http://hdl.handle.net/10044/1/57864
VL  - 140
ER  -
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