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On deformations with the same principal stretches

par Boulanger, Philippe ;Hayes, Michael
Référence Journal of elasticity, 115, 2, page (157-171)
Publication Publié, 2014-04

Article révisé par les pairs

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Résumé :

In the context of the finite strain theory, plane isochoric homogeneous deformations are considered. Inspired by two examples (plane elliptical and plane hyperbolic deformations), it is seen that for any such isochoric deformation the corresponding principal stretches are equal to those of simple shear provided there is a certain relation between the amount of shear of the simple shear and the parameters of the general plane deformation. Then, the link is established between any two homogeneous deformations which have identical principal stretches. It involves two rotations, one in the undeformed state and the other in the deformed state. These rotations are determined explicitly for an arbitrary isochoric homogeneous deformation and the simple shear with the same principal stretches. © 2013 Springer Science+Business Media Dordrecht.