Abstract
Murnaghan's theory of finite strain is developed for a medium of cubic symmetry subjected to finite hydrostatic compression, plus an arbitrary homogeneous infinitesimal strain. The free energy is developed for cubic symmetry to include terms of the third order in the strain components. The effect of pressure upon the second-order elastic constants is found and compared with experiment, with particular reference to the compressibility; the pressure-volume relation in several approximations is compared with the measurements to 100,000 kg/${\mathrm{cm}}^{2}$. The simplest approximation is shown to give a satisfactory account of most of the experimental data. The results are also compared with some of the calculations based on Born's lattice theory.
Keywords
CompressibilityFinite strain theoryHydrostatic pressureLattice (music)Hydrostatic equilibriumCondensed matter physicsStrain (injury)InfinitesimalPhysicsCubic crystal systemSymmetry (geometry)Materials scienceInfinitesimal strain theoryElasticity (physics)ThermodynamicsFinite element methodMathematical analysisQuantum mechanicsMathematicsGeometry
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Publication Info
- Year
- 1947
- Type
- article
- Volume
- 71
- Issue
- 11
- Pages
- 809-824
- Citations
- 6157
- Access
- Closed
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Cite This
Francis Birch
(1947).
Finite Elastic Strain of Cubic Crystals.
Physical Review
, 71
(11)
, 809-824.
https://doi.org/10.1103/physrev.71.809
Identifiers
- DOI
- 10.1103/physrev.71.809