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Materials 2017, 10(11), 1289; doi:10.3390/ma10111289

Effective Thermal Expansion Property of Consolidated Granular Materials

Department of Mechanical and Aerospace Engineering, Rutgers University, Piscataway, NJ 08854, USA
School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907, USA
Current address: Boehringer Ingelheim Pharm. Inc., 900 Ridgebury Rd., Ridgefield, CT 06877, USA
Author to whom correspondence should be addressed.
Received: 9 October 2017 / Revised: 1 November 2017 / Accepted: 2 November 2017 / Published: 9 November 2017
(This article belongs to the Special Issue Granular Materials)
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Thermally-assisted compaction of granular materials is of keen interest in many engineering applications. A proper estimation of the material behavior of compacted granular materials is contingent upon the knowledge of microstructure formation, which is highly dependent on the bulk material properties and processing conditions, during the deformation stage. Originating from the pair interactions between particles, the macroscopic properties are obtained using various homogenization techniques and postulating continuum constitutive laws. While pioneers in this field have laid fundamental groundwork regarding effective medium descriptions, there exists a discrepancy between discrete and continuum level solutions. In our previous work, we elaborated a Particle Mechanics Approach (PMA) that integrates thermal contact and Hertzian deformation models to understand the thermo-mechanically-coupled consolidation problem. We also considered the analogous problem from the perspective of the conventional Continuum Mechanics Approach (CMA). In this study, following the multi-scale modeling framework, we propose an effective thermal expansion coefficient for the thermally-assisted compaction of granular materials. View Full-Text
Keywords: effective thermal expansion coefficient; thermo-mechanical coupling; granular materials; particle mechanics; contact mechanics; thermally-assisted compaction effective thermal expansion coefficient; thermo-mechanical coupling; granular materials; particle mechanics; contact mechanics; thermally-assisted compaction

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Küçük, G.; Gonzalez, M.; Cuitiño, A.M. Effective Thermal Expansion Property of Consolidated Granular Materials. Materials 2017, 10, 1289.

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