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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2015, Volume 56, Issue 6, Pages 38–45
DOI: https://doi.org/10.15372/PMTF20150605 (Mi pmtf1283) 		 
Investigation of changes in the spherical shell shape under the action of pulsed loading due to contact interaction with a rigid block

V. G. Bazhenova, D. A. Varavinb, A. I. Kibetsa, A. A. Ryabovb, V. I. Romanovb

a Research Institute for Mechanics at the Lobachevsky State University of Nizhni Novgorod, Nizhny Novgorod, 603950, Russia
b Institute of Experimental Physics (VNIIEF), Sarov, 607188, Russia
Full-text PDF (310 kB)
DOI: https://doi.org/10.15372/PMTF20150605
Abstract: An axisymmetric problem of high strains in a spherical lead shell enclosed into an aluminum “spacesuit” under the action of pulsed loading is considered. The shell straining is described with the use of equations of mechanics of elastoviscoplastic media in Lagrangian variables, and the kinematic relations are determined in the current state metrics. Equations of state are taken in the form of equations of the flow theory with isotropic hardening. The problem is solved numerically by using the variational difference method and the “cross” explicit scheme of integration with respect to time. The influence of the yield stress as a function of the strain rate on changes in the shell shape is studied for different values of loading. The calculated final shape and residual strains are demonstrated to be in good agreement with experimental data.
Keywords: spherical shell, "spacesuit, " contact, friction, plastic strains, buckling.
Received: 08.06.2015
English version:
Journal of Applied Mechanics and Technical Physics, 2015, Volume 56, Issue 6, Pages 966–971
DOI: https://doi.org/10.1134/S002189441506005X
Bibliographic databases:
Document Type: Article
UDC: 539.3
Language: Russian
Citation: V. G. Bazhenov, D. A. Varavin, A. I. Kibets, A. A. Ryabov, V. I. Romanov, “Investigation of changes in the spherical shell shape under the action of pulsed loading due to contact interaction with a rigid block”, Prikl. Mekh. Tekh. Fiz., 56:6 (2015), 38–45; J. Appl. Mech. Tech. Phys., 56:6 (2015), 966–971
Citation in format AMSBIB
\Bibitem{BazVarKib15}
\by V.~G.~Bazhenov, D.~A.~Varavin, A.~I.~Kibets, A.~A.~Ryabov, V.~I.~Romanov
\paper Investigation of changes in the spherical shell shape under the action of pulsed loading due to contact interaction with a rigid block
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2015
\vol 56
\issue 6
\pages 38--45
\mathnet{http://mi.mathnet.ru/pmtf1283}
\crossref{https://doi.org/10.15372/PMTF20150605}
\elib{https://elibrary.ru/item.asp?id=25373157}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2015
\vol 56
\issue 6
\pages 966--971
\crossref{https://doi.org/10.1134/S002189441506005X}
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