Constraints on the Gruneisen Theory

Report No. ARL-TR-4041
Authors: Steven B. Segletes
Date/Pages: February 2007; 28 pages
Abstract: While the Gruneisen theory was developed from statistical theory, it is unclear which results of statistical mechanics are intrinsically part of the macroscopic Gruneisen theory and which may be dispensed with by users of the macroscopic theory. Several constraints on entropy and specific heat, arising from the Gruneisen theory, are developed herein. Not surprisingly, such constraints are compatible with the underlying statistical theory. Nonetheless, having been derived from macroscopic thermodynamic considerations, they represent constraints that must apply to any macrothermodynamic model expressing the Gruneisen function as being independent of temperature. An alternate formulation for the Gruneisen function is also presented.
Distribution: Approved for public release
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Last Update / Reviewed: February 1, 2007