Thermal contact conductance characterization via computational contact homogenization

A finite deformation theory framework

authored by: I. Temizer, P. Wriggers
Abstract: In order to predict the macroscopic thermal response of contact interfaces between rough surface topographies, a computational contact homogenization technique is developed at the finite deformation regime. The overall homogenization framework transfers macroscopic contact variables, such as surfacial stretch, pressure and heat flux, as boundary conditions on a test sample within a micromechanical interface testing procedure. An analysis of the thermal dissipation within the test sample reveals a thermodynamically consistent identification for the macroscopic thermal contact conductance parameter that enables the solution of a homogenized thermomechanical contact boundary value problem based on standard computational approaches. The homogenized contact response effectively predicts a temperature jump across the macroscale contact interface. The strong dependence of this homogenized response on macroscale solution variables of interest is demonstrated via representative three-dimensional numerical investigations. The proposed contact homogenization framework is suitable for the analysis of similar energy transport phenomena across heterogeneous contact interfaces where the investigation of the sources for energy dissipation is of concern.
Organisation(s): Institute of Continuum Mechanics
Type: Article
Journal: International Journal for Numerical Methods in Engineering
Volume: 83
Pages: 27-58
No. of pages: 32
ISSN: 0029-5981
Publication date: 13.01.2010
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Numerical Analysis, Engineering(all), Applied Mathematics
Electronic version(s): https://doi.org/10.1002/nme.2822 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{df68046118a3498eb8d6ef754708459e,
title = "Thermal contact conductance characterization via computational contact homogenization: A finite deformation theory framework",
abstract = "In order to predict the macroscopic thermal response of contact interfaces between rough surface topographies, a computational contact homogenization technique is developed at the finite deformation regime. The overall homogenization framework transfers macroscopic contact variables, such as surfacial stretch, pressure and heat flux, as boundary conditions on a test sample within a micromechanical interface testing procedure. An analysis of the thermal dissipation within the test sample reveals a thermodynamically consistent identification for the macroscopic thermal contact conductance parameter that enables the solution of a homogenized thermomechanical contact boundary value problem based on standard computational approaches. The homogenized contact response effectively predicts a temperature jump across the macroscale contact interface. The strong dependence of this homogenized response on macroscale solution variables of interest is demonstrated via representative three-dimensional numerical investigations. The proposed contact homogenization framework is suitable for the analysis of similar energy transport phenomena across heterogeneous contact interfaces where the investigation of the sources for energy dissipation is of concern.",
keywords = "Contact conductance, Contact homogenization, Finite deformation",
author = "I. Temizer and P. Wriggers",
year = "2010",
month = jan,
day = "13",
doi = "10.1002/nme.2822",
language = "English",
volume = "83",
pages = "27--58",
journal = "International Journal for Numerical Methods in Engineering",
issn = "0029-5981",
publisher = "John Wiley and Sons Ltd",
number = "1",
}