On an optimal control problem for the shape of thin inclusions in elastic bodies

被引:0
作者
Shcherbakov V.V. [1 ]
机构
[1] Lavrent'ev Institute of Hydrodynamics, Novosibirsk, 630090
关键词
crack; derivative of energy functional; nonlinear boundary conditions; optimal control; thin rigid inclusion;
D O I
10.1134/S1990478913030174
中图分类号
学科分类号
摘要
An optimal control problem is considered for a two-dimensional elastic body with a straight thin rigid inclusion and a crack adjacent to it. It is assumed that the thin rigid inclusion delaminates and has a kink. On the crack faces the boundary conditions are specified in the form of equalities and inequalities which describe the mutual nonpenetration of the crack faces. The derivative of the energy functional along the crack length is used as the objective functional, and the position of the kink point, as the control function. The existence is proved of the solution to the optimal control problem. © 2013 Pleiades Publishing, Ltd.
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页码:435 / 443
页数:8
相关论文
共 17 条
[1]  
Morozov N.F., Mathematical Questions of Crack Theory, (1984)
[2]  
Khludnev A.M., Kovtunenko V.A., Analysis of Cracks in Solids, (2000)
[3]  
Khludnev A.M., Elasticity Theory Problems in Nonsmooth Domains, (2010)
[4]  
Cherepanov G.P., Mechanics of Brittle Fracture, (1974)
[5]  
Rudoi E.M., Differentiation of Energy Functionals in Two-Dimensional Elasticity Theory for Solids With Curvilinear Cracks, Zh. Priklk. Mekh. Tekhn. Fiz., 45, 6, pp. 83-94, (2004)
[6]  
Rudoi E.M., Differentiation of Energy Functionals in a Problem on Curvilinear Crack With Possible Contact of the Faces, Mekh. Tverd. Tela No. 6, pp. 113-127, (2007)
[7]  
Banichuk N.V., Optimization of Elastic Body Forms, (1980)
[8]  
Banichuk N.V., Optimization of Structure Components of Composites, (1988)
[9]  
Litvinov V.G., Optimization in Elliptic Boundary Value Problems With Application to Mechanics, (1987)
[10]  
Haslinger J., Neittaanmaki P., Finite Element Approximation for Optimal Shape Design: Theory and Applications, (1988)