Development of inhomogeneous fields under postcritical deformation of steel specimens in extension
- Authors: Vildeman V.E.1, Lomakin E.V.1,2, Tret’yakova T.V.1, Tret’yakov M.P.1
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Affiliations:
- Perm National Research Polytechnic University
- Lomonosov Moscow State University
- Issue: Vol 51, No 5 (2016)
- Pages: 612-618
- Section: Article
- URL: https://journal-vniispk.ru/0025-6544/article/view/162773
- DOI: https://doi.org/10.3103/S0025654416050150
- ID: 162773
Cite item
Abstract
The paper deals with experimental studies of inhomogeneous strain fields in the “neck” region in extension of plane and cylindrical specimens at the postcritical stage, which directly precedes the fracture, by using a video system and a digital image correlation method. We consider the problems of interpretation of extension diagrams obtained for specimens of various length with strain inhomogeneity in the working section of the specimen with a “neck.”We obtain experimental data about the distribution of longitudinal, transverse, and shear strain fields and the displacement fields in the region of the plane specimen localization by using the digital image correlation method.
About the authors
V. E. Vildeman
Perm National Research Polytechnic University
Email: evlomakin@yandex.ru
Russian Federation, Komsomolsky pr. 29, Perm, 614990
E. V. Lomakin
Perm National Research Polytechnic University; Lomonosov Moscow State University
Author for correspondence.
Email: evlomakin@yandex.ru
Russian Federation, Komsomolsky pr. 29, Perm, 614990; Moscow, 119991
T. V. Tret’yakova
Perm National Research Polytechnic University
Email: evlomakin@yandex.ru
Russian Federation, Komsomolsky pr. 29, Perm, 614990
M. P. Tret’yakov
Perm National Research Polytechnic University
Email: evlomakin@yandex.ru
Russian Federation, Komsomolsky pr. 29, Perm, 614990
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