Proposition of an uncoupled approach for the identification of cyclic heat sources from temperature fields in the presence of large strains

Proposition of an uncoupled approach for the identification of cyclic heat sources from... A methodology is proposed to define an equivalent geometry allowing the use of an uncoupled algorithm to solve thermomechanical problems when cyclic large strain occurs. This methodology is set up on the case of a simple bar and is then challenged on a structural sample for cyclic loadings. It is shown that the definition of the equivalent geometry is dependent on the thermal boundary conditions, which are usually unknowns of the thermal problem. The proposed approach is finally applied to the identification of cyclic dissipation from infrared thermography measurements. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Continuum Mechanics and Thermodynamics Springer Journals

Proposition of an uncoupled approach for the identification of cyclic heat sources from temperature fields in the presence of large strains

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Subject
Physics; Classical and Continuum Physics; Engineering Thermodynamics, Heat and Mass Transfer; Theoretical and Applied Mechanics; Structural Materials
ISSN
0935-1175
eISSN
1432-0959
D.O.I.
10.1007/s00161-017-0572-z
Publisher site
See Article on Publisher Site

Abstract

A methodology is proposed to define an equivalent geometry allowing the use of an uncoupled algorithm to solve thermomechanical problems when cyclic large strain occurs. This methodology is set up on the case of a simple bar and is then challenged on a structural sample for cyclic loadings. It is shown that the definition of the equivalent geometry is dependent on the thermal boundary conditions, which are usually unknowns of the thermal problem. The proposed approach is finally applied to the identification of cyclic dissipation from infrared thermography measurements.

Journal

Continuum Mechanics and ThermodynamicsSpringer Journals

Published: May 16, 2017

References

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