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Modelling the mechanical response of urushi lacquer subject to a change in relative humidity
journal contribution
posted on 2015-02-20, 14:19 authored by X. Liu, Ricky D. Wildman, Ian A. Ashcroft, Adel E. Elmahdy, Pablo RuizPablo RuizA hygromechanical model has been developed to simulate the in-service behaviour of
the natural lacquer urushi, using a phenomenological description of viscoelasticity. The
material and mechanical properties were determined as a function of the relative humidity
(RH), and the relationship between RH and moisture content was determined. These
properties served as inputs to a finite-element-based model that was then tested against
experimental measurements of the depth-averaged stresses in a thin layer of urushi
deposited on a substrate and exposed to changes in the environmental conditions. Good
agreement was seen between the predicted and measured behaviour. The validated model
was used to investigate the spatial and temperature variation of stress in urushi films
subjected to cyclic environmental conditioning.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCESVolume
468Issue
2147Pages
3533 - 3551 (19)Citation
LIU, X. ... et al, 2012. Modelling the mechanical response of urushi lacquer subject to a change in relative humidity. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 468 (2147), pp. 3533 - 3551.Publisher
© Royal SocietyVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2012Notes
This article is closed access.ISSN
1364-5021Publisher version
Language
- en