Geodesic
Two dimensional plastic waves in quasi rate independent viscoplastic materials
Theoretical and applied mechanics, Tome 38 (2011) no. 1, p. 47 Cet article a éte moissonné depuis la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

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The subject of this work is an analysis of the experimental biaxial Hopkinson bar technique when such a device consists of a cruciform tensile specimen surrounded by four very long elastic bars. Unlike commonly applied by-pass analysis which attempts to draw conclusions from behaviour of elastic bars we attempt to take into account real plastic waves inside the specimen with few hundreds of reflections. A quasi rate-independent as well as a more general rate-dependent tensor function model for ASME 537 steel are applied. Plastic wave speeds non-existent in traditional elasto-viscoplasticity are analyzed. Some preliminary numerical results for symmetric and non-symmetric loading cases valid for initial and subsequent elastic ranges are given.
DOI : 10.2298/TAM1101047M
Classification : 74C99 74J30
Keywords: 2D Hopkinson bar, cruciform specimen, quasi rate independent materials 
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     title = {Two dimensional plastic waves in quasi rate independent viscoplastic materials},
     journal = {Theoretical and applied mechanics},
     pages = {47 },
     year = {2011},
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     zbl = {1289.74044},
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     url = {http://geodesic.mathdoc.fr/articles/10.2298/TAM1101047M/}
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M. V. Mićunović; C. Albertini; A. Grillo; I. Muha; G. Wittum; L. Kudrjavceva. Two dimensional plastic waves in quasi rate independent viscoplastic materials. Theoretical and applied mechanics, Tome 38 (2011) no. 1, p. 47 . doi: 10.2298/TAM1101047M

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