Original title: An experimental investigation of yield surfaces anisotropies
Authors: Štefan, Jan ; Parma, Slavomír ; Marek, René ; Plešek, Jiří ; Feigenbaum, H. P. ; Ciocanel, C.
Document type: Papers
Conference/Event: Conference on Experimental Stress Analysis /58./, Sobotín (CZ), 20201019
Year: 2020
Language: eng
Abstract: This contribution is dedicated to a rigorous experimental procedure for evaluation of yield surfaces of common metallic materials. This yield surface tracing procedure employs thin-walled tubular specimens to identify individual yield points of the material under arbitrary combinations of axial load and torque. A yield point is identified on the basis of a prescribed threshold for the effective plastic strain that is being continuously and fully automatically evaluated throughout the test. The experimental results generated with this tracing method are promising, leading to shapes of the yield surfaces conform with the von Mises criterion. The proposed methodology can effectively capture the YS shape.
Keywords: directional distortional hardening; experimental mechanics; metallic materials; yield surface
Project no.: GA19-03282S (CEP), LTAUSA18199
Funding provider: GA ČR, GA MŠk
Host item entry: EAN 2020 EXPERIMENTAL STRESS ANALYSIS, ISBN 978-80-248-4451-0

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0313117

Permalink: http://www.nusl.cz/ntk/nusl-432286


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers