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Isogonal and isotoxal hexagons as extremal yield figures

: Altenbach, H.; Rosendahl, P.L.; Becker, W.; Kolupaev, V.A.

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Wisniewski, K. ; Polish Academy of Sciences, Institute of Fundamental Technological Research:
41st Solid Mechanics Conference, SolMech 2018. Book of Abstracts : Warsaw, Poland, August 27-31, 2018
Warschau: Polish Academy of Science, 2018
ISBN: 978-83-65550-13-2
Solid Mechanics Conference (SolMech) <41, 2018, Warsaw>
Abstract, Elektronische Publikation
Fraunhofer LBF ()
isogonal hexagon; isotoxal hexagon; extremal yield figure; plasticity; isotropic material behavior

In the theory of plasticity the existence of the yield surface is assumed. In the past, several yield surfaces were formulated. However, choosing an appropriate surface for a particular material remains challenging. The extremal yield figures for isotropic material behavior will be generalized in this paper for universal practical application. Measured data for concrete will be approximated with the help of the proposed criterion.