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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2004, Volume 45, Issue 6, Pages 83–94
(Mi pmtf2444)
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This article is cited in 22 scientific papers (total in 22 papers)
Differentiation of energy functionals in two-dimensional elasticity theory for solids with curvilinear cracks
E.M. Rudoy Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract:
This paper considers the equations of two-dimensional elasticity theory in nonsmooth domains. The domains contain curvilinear cracks of variable length. On the crack faces, conditions are specified in the form of inequalities describing mutual nonpenetration of the crack faces. It is proved that the solutions of equilibrium problems with a perturbed crack converge to the solution of the equilibrium problem with an unperturbed crack in the corresponding space. The derivative of the energy functional with respect to the length of a curvilinear crack is obtained.
Keywords:
elasticity, crack, Griffiths criterion, variational inequality, derivative of energy functional, nonsmooth domain.
Received: 12.01.2004 Accepted: 09.03.2004
Citation:
E.M. Rudoy, “Differentiation of energy functionals in two-dimensional elasticity theory for solids with curvilinear cracks”, Prikl. Mekh. Tekh. Fiz., 45:6 (2004), 83–94; J. Appl. Mech. Tech. Phys., 45:6 (2004), 843–852
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https://www.mathnet.ru/eng/pmtf2444 https://www.mathnet.ru/eng/pmtf/v45/i6/p83
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