✦ LIBER ✦
Stress, strain and energy splittings for anisotropic elastic solids under volumetric constraints
✍ Scribed by Carlos A. Felippa; Eugenio Oñate
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 220 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0045-7949
No coin nor oath required. For personal study only.
✦ Synopsis
We define stress and strain splittings appropriate to linearly elastic anisotropic materials with volumetric constraints. The treatment includes rigidtropic materials, which develop no strains under a stress pattern that is a null eigenvector of the compliance matrix. This model includes as special case incompressible materials, for which the eigenvector is hydrostatic stress. The main finding is that pressure and volumetric strain must be redefined as effective quantities. Using this idea, an energy decomposition that exactly separates deviatoric and volumetric energy follows.