Physics – Classical Physics
Scientific paper
2010-01-13
Comptes Rendus de l Acad\'emie des Sciences - Series IIB - Mechanics-Physics-Astronomy 322 (1996) 87-94
Physics
Classical Physics
8 pages
Scientific paper
This note deals with stiffness tensors measured from anisotropic linear elastic materials, whose symmetry is unknown. Their possible symmetries (exact or approximative) are revealed by a pole figure. An intrinsic function allows one to obtain a stiffness tensor which posses the chosen symmetry, the nearest from the measured tensor, and its associated natural symmetry basis. For each symmetry level, a distance between these tensors is given. The measurement of the stiffness tensor is done with an ultrasonic direct contact method. It is applied onto a 26 faces oak specimen.
Berthaud Yves
Geymonat Giuseppe
Maurice François Marc Louis
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