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Original title:
Development of autonomous experimental setup to investigate directional distortional hardening under biaxial loading
Authors: Svárovský, Jiří ; Parma, Slavomír ; Štefan, Jan ; Ciocanel, C. ; Feigenbaum, H. P. ; Klepač, Vilém ; Marek, René ; Plešek, Jiří
Document type: Papers
Conference/Event: Computational Mechanics 2021 /36./, Srní (CZ), 20211108
Year: 2021
Language: eng
Abstract: Plastic deformations alter the shape of the yield surface in the stress space. Models for predicting the shape of the yield surface according to the direction of loading are being developed. Experimental data are the key factor in development and validation of phenomenological models, such as the model of directional distortional hardening cited in this study. The objective of this paper is to present the experimental setup for investigation of the directional distortional hardening. A new autonomous method was developed using an axial-torsional testing machine and the Labivew 2017 graphical programming environment to monitor the yield surface in axial stress – shear stress space. A suitable yield condition in form of effective plastic strain was used for the determination of the yield points. Initial yield surface obtained by this method shows promising agreement with von Mises model of the yield surface. Several outstanding yield points were measured which disrupt the assumption of the yield surface convexity. Therefore, possible shortcomings caused by the methodology are being investigated.
Keywords: directional distortional hardening; Labview; strain hardening; yield surface
Project no.: EF15_003/0000493, LTAUSA18199, GA19-03282S (CEP)
Funding provider: GA MŠk, GA MŠk, GA ČR
Host item entry: Computational mechanics 2021. Proceedings of computational mechanics 2021, ISBN 978-80-261-1059-0
Note: Související webová stránka: https://www.kme.zcu.cz/compmech/info_sborniky.php
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/11104/0327203
Permalink: http://www.nusl.cz/ntk/nusl-508408
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Authors: Svárovský, Jiří ; Parma, Slavomír ; Štefan, Jan ; Ciocanel, C. ; Feigenbaum, H. P. ; Klepač, Vilém ; Marek, René ; Plešek, Jiří
Document type: Papers
Conference/Event: Computational Mechanics 2021 /36./, Srní (CZ), 20211108
Year: 2021
Language: eng
Abstract: Plastic deformations alter the shape of the yield surface in the stress space. Models for predicting the shape of the yield surface according to the direction of loading are being developed. Experimental data are the key factor in development and validation of phenomenological models, such as the model of directional distortional hardening cited in this study. The objective of this paper is to present the experimental setup for investigation of the directional distortional hardening. A new autonomous method was developed using an axial-torsional testing machine and the Labivew 2017 graphical programming environment to monitor the yield surface in axial stress – shear stress space. A suitable yield condition in form of effective plastic strain was used for the determination of the yield points. Initial yield surface obtained by this method shows promising agreement with von Mises model of the yield surface. Several outstanding yield points were measured which disrupt the assumption of the yield surface convexity. Therefore, possible shortcomings caused by the methodology are being investigated.
Keywords: directional distortional hardening; Labview; strain hardening; yield surface
Project no.: EF15_003/0000493, LTAUSA18199, GA19-03282S (CEP)
Funding provider: GA MŠk, GA MŠk, GA ČR
Host item entry: Computational mechanics 2021. Proceedings of computational mechanics 2021, ISBN 978-80-261-1059-0
Note: Související webová stránka: https://www.kme.zcu.cz/compmech/info_sborniky.php
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/11104/0327203
Permalink: http://www.nusl.cz/ntk/nusl-508408
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Record created 2022-09-28, last modified 2023-12-06