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Assessment of non-adiabatic behaviour in thermoelastic stress analysis of small scale components

Wang, W.J., Dulieu-Barton, J. M. and Li, Q. (2010) Assessment of non-adiabatic behaviour in thermoelastic stress analysis of small scale components Experimental Mechanics, 50, pp. 449-461. (doi:10.1007/s11340-009-9249-2).

Record type: Article


The classical thermoelastic equation and the
generalized heat conduction equation are developed to deal
with a non-adiabatic response in thermoelastic stress
analysis. A FE simulation procedure is set up to solve the
heat conduction equation over a range of loading frequencies.
A small disc (20 mm diameter) loaded under threepoint
diametric compression is used to examine the effect
of in-plane heat conduction. As the disc has regions of zero,
moderate and high stress gradients it is an ideal component
for this analysis. A regime is developed that provides a
basis for an assessment of the nature of the response and
allows a minimum loading frequency to be identified so
that adiabatic behaviour is obtained. This validity of this
approach is demonstrated on steel disc of 20 mm diameter.
A special loading device has been designed to obtain the
three-point loading and a recently introduced Instron Electropuls test machine is used to achieve the high levels
of cyclic loading required for the adiabatic conditions.

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Published date: 2010
Keywords: Thermoelastic stress analysis . Non adiabatic behaviour . Small scale testing
Organisations: Fluid Structure Interactions Group


Local EPrints ID: 68669
ISSN: 1741-2765
PURE UUID: db0dd3ee-d667-44dc-bcb6-8827907a5aea

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Date deposited: 14 Sep 2009
Last modified: 19 Jul 2017 00:17

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