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Title of Article

NUMERICAL MODELING OF TENSILE EXPERIMENTS WITH HAT-SHAPED SPECIMENS BY DIRECT IMPACT METHOD


Issue
1
Date
 2014

Article type
 scientific article
UDC
539.3
Pages
244-248
Keywords
vertical gas-gun stand, direct impact method, hat-shaped specimens, impact tension, elasto-viscoplastic characteristics.


Authors
Bazhenov V.G.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Baranova M.S.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Nagornykh E.V.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Shoshin D.V.
RFYaTs-VNIIEF, Sarov


Abstract
We study numerical modeling of elasto-viscoplastic deformation processes under tensile stress of hat-shaped specimens by direct impact method in the axisymmetric and one-dimensional formulations. The accuracy of reconstruction of forces, displacements and velocities of displacement in the hat-shaped specimens, obtained on the basis of the one-dimensional model, is evaluated.

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