Energy functional derivative with respect to the length of a curvilinear oblique cut in the equilibrium problem for a Timoshenko plate |
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Authors: | N P Lazarev |
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Institution: | 1.Scientific Research Institute of Mathematics of the North-Eastern Federal University,Yakutsk,Russia;2.Lavrentyev Institute of Hydrodynamics,Russian Academy of Sciences,Novosibirsk,Russia |
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Abstract: | This paper describes the dependence of the solution of the equilibrium problem for a Timoshenko plate and the total energy functional of the plate on the perturbation of an oblique crack. The nonlinearity of the problem is caused by the boundary conditions in the form of inequalities (conditions such as the Signorini conditions), which describe mutual nonpenetration of the opposite crack faces. The continuous dependence of the solution of the problem on the perturbation of the crack length is established. A formula for the energy functional derivative of the perturbation of the crack length is obtained. |
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