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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Khamitov T.K. – candidate of technical sciences, senior lecturer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Fatykhova R.R. – student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleOn stability of elastic-plastic cylindrical shell under longitudinal impact
Abstract.We consider the problem of stability of elastic-plastic cylindrical shell under longitudinal impact. It is known that for a metal shell with certain ratios of thickness to the radius of the buckling under longitudinal compression occurs beyond the elastic limit. Elastic-plastic material properties are characterized by a diagram with linear hardening, we use the theory of deformation without regard to unloading. For the two types of loading of the shell critical load obtained taking into account the finite speed of propagation of longitudinal waves. Under a critical load refers to the load at which the frequency of the bending oscillations is equal to zero. The problem is solved in the axisymmetric formulation of the first passage of the longitudinal compression waves along the shell. It is shown that if the longitudinal impact values of critical loads are more sensitive to the nature of the stress state behind the front of the longitudinal wave than to the consideration of the finite speed of propagation of the latter.
Keywords.cylindrical shell, buckling, longitudinal wave, critical voltage.
For citations:Khamitov T.K., Fatykhova R.R. On stability of elastic-plastic cylindrical shell under longitudinal impact // Izvestiya KGASU. 2016. №4(38) P.490--1.


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