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Mechanics of Solids
Critical States of a Damaged Non-linearly Deformed Medium During High-speed Collision with an Obstacle
V. A. Petushkov A. A. Blagonravov Mechanical Engineering Institute RAS. Laboratory of Mathematical Simulation
(published under the terms of the Creative Commons Attribution 4.0 International License)
Abstract:
Generalized model of the nonlinear interconnected deformation and fracture of a damaged polycrystalline media is presented at high-speed shock influence conditions. Geometrical non-linearity caused by finite non-linear deformations depending on speed, behavior of materials with variable micro structure, anisotropic hardening and Baushinger-effect are considered. Particular attention is paid to problems of damage localization, progression and final fracture of non-linearity deformed bodies. Justification of the proposed model is implemented and nonlinear wave processes in a thin-walled shell are studied at high-speed collision condition with an obstacle.
Keywords:
nonlinear deformable medium, damaging, shells, shock loading, fracture, mathematical simulation.
Original article submitted 02/I/2009 revision submitted – 16/II/2009
Citation:
V. A. Petushkov, “Critical States of a Damaged Non-linearly Deformed Medium During High-speed Collision with an Obstacle”, Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 1(18) (2009), 47–60
Linking options:
https://www.mathnet.ru/eng/vsgtu659 https://www.mathnet.ru/eng/vsgtu/v118/p47
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