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Mechanics of Systems of Affine Bodies. Geometric Foundations and Applications in Dynamics of Structured Media | | J. J. Slawianowski
; V. Kovalchuk
; A. Martens
; B. Golubowska
; E. E. Rożko
; | | Date: |
16 Oct 2010 | | Abstract: | In the present paper we investigate the mechanics of systems of
affinely-rigid bodies, i.e., bodies rigid in the sense of affine geometry.
Certain physical applications are possible in modelling of molecular crystals,
granular media, and other physical objects. Particularly interesting are
dynamical models invariant under the group underlying geometry of degrees of
freedom. In contrary to the single body case there exist nontrivial potentials
invariant under this group (left and right acting). The concept of relative
(mutual) deformation tensors of pairs of affine bodies is discussed. Scalar
invariants built of such tensors are constructed. There is an essential novelty
in comparison to deformation scalars of single affine bodies, i.e., there exist
affinely-invariant scalars of mutual deformations. Hence, the hierarchy of
interaction models according to their invariance group, from Euclidean to
affine ones, can be considered. | | Source: | arXiv, 1010.3333 | | Services: | Forum | Review | PDF | Favorites | |
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