Defining the limits to long-term nano-indentation creep measurement of viscoelastic materials
- Submitting institution
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Coventry University
- Unit of assessment
- 12 - Engineering
- Output identifier
- 24334671
- Type
- D - Journal article
- DOI
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10.1016/j.polymertesting.2018.07.022
- Title of journal
- Polymer Testing
- Article number
- -
- First page
- 297
- Volume
- 70
- Issue
- -
- ISSN
- 0142-9418
- Open access status
- Compliant
- Month of publication
- July
- Year of publication
- 2018
- URL
-
-
- Supplementary information
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- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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1
- Research group(s)
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-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Modelling indentation creep by classical rheology is widespread; extrapolation of short measurements to predict long term creep is desired. A world-first combination of world-class close-controlled environment with ultra-stable instrument design allowed validated, ‘drift-free’ measurement of the longest ever indentation creep experiments. For the first time, model predictions of future creep obtained from early data were tested against the measured actual future response. The startling, disruptive result, that no amount of early data fitted by n-element Kelvin models can predict future creep, directly changed international standardisation strategy and is incorporated in an ISO/TC164/SC3/WG4 project developing a new part of ISO14577 (Michael.griepentrog@bam.de).
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -