Geodesic
On the variational principle of Lagrange of the micropolar elasticity theory in the case of orthotropic medium
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 1 (2023), pp. 68-72

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In this paper, a variational principle of Lagrange, the Ritz method and piecewise polynomial serendipity shape functions are used to obtain the stiffness matrix and a system of linear algebraic equations in the micropolar theory of elasticity for orthotropic and centrally symmetric material. 
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     author = {A. V. Romanov},
     title = {On the variational principle of {Lagrange} of the micropolar elasticity theory in the case of orthotropic medium},
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A. V. Romanov. On the variational principle of Lagrange of the micropolar elasticity theory in the case of orthotropic medium. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 1 (2023), pp. 68-72. http://geodesic.mathdoc.fr/item/VMUMM_2023_1_a12/