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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, associate professor 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 Khasanov A.R. – engineer of DTD E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LTD «Zavod ZBI «Culonstroy» The organization address: Russia, Kazan, Gvardeyskaya st., 53
Title of the articleDynamic buckling of cylindrical shell under axial impact
Abstract.Problem statement. Discusses the problem of dynamic stability of elastic and elastic-plastic cylindrical shell under longitudinal impact. It is known that under shock loads greater than the static critical value, the buckling modes are different from static. We considered two types of loading sheath: instant app and the linear increase in the voltage as a function of time. Results. Examines the axisymmetric forms of the movements. For the determination of half wavelengths using a static criterion of stability. For two types of loading is obtained the critical length of half wavelengths depending on the dynamic factor. It is assumed that buckling occurs in the first pass of the longitudinal wave along the shell, and in this case, the shell can be considered semi-infinite. In the case of instantaneous application of the load to the elastic shell shows the relationship between the static criterion and the criterion of Lavrentiev-Ishlinskii. Conclusions. The significance of the results for the construction industry is that for the shell of a medium length of critical half wavelengths strongly depend on the nature of the stress state behind the front of the longitudinal wave.
Keywords.cylindrical shell, buckling, static criterion, the half-wave.
For citations:Khamitov T.K., Khasanov A.R. Dynamic buckling of cylindrical shell under axial impact // Izvestiya KGASU. 2017. №4(42) P.407-414.


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