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JOURNALS // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika // Archive

Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2020 Number 6, Pages 63–66 (Mi vmumm4369)

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Lagrangian representation of the family of Gordon–Schowalter objective derivatives at simple shear

E. D. Martynova

Lomonosov Moscow State University, Faculty of Mechanics and Mathematics

Abstract: The paper deals with the one-parameter family of Gordon–Showalter objective derivatives, which includes the Oldroyd, Cotter–Rivlin, and Jaumann derivatives. For a simple shift, movable bases were found in which the considered differential operators are reduced to the total time derivatives of the tensor components. For all derivatives of the family under consideration, except for Oldroyd and Cotter–Rivlin derivatives, the vectors of bases lying in the shear plane rotate with a certain period, changing their length and mutual orientation.

Key words: finite deformations, simple shift, objective derivatives, one-parameter family of Gordon–Showalter objective derivatives, Lagrangian representation of objective derivatives.

UDC: 539.3

Received: 17.07.2019


 English version:
Moscow University Mathematics Bulletin, Moscow University Måchanics Bulletin, 2020, 75:6, 176–179

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