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A direct approach to modelling the complex response of magnesium AZ31 alloy sheets to variable strain amplitude loading using Prandtl-Ishlinskii operators
ID Šolinc, Urša (Author), ID Klemenc, Jernej (Author), ID Nagode, Marko (Author), ID Šeruga, Domen (Author)

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Abstract
A new approach to modelling the complex behaviour of magnesium AZ31 alloy subjected to arbitrary uniaxial cyclic loading is introduced. Based on the Prandtl-Ishlinskii rheological model, one side play operators are applied so as to simulate the ascending and descending parts of asymmetric hysteresis loops separately. From the known material response to constant amplitude uniaxial loading, the Prandtl-Ishlinskii rheological model gives a fast and accurate simulation of the magnesium AZ31 alloy sheets response to arbitrary uniaxial loading under isothermal conditions. The approach represents a valuable starting point for estimating fatigue life using the energy approach for magnesium alloys.

Language:English
Keywords:uniaxial cyclic loading, variable amplitude loading, magnesium alloys, AZ31 Mg, material model, rheological model, one side play operators, Prandtl-Ishlinskii operators
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Author Accepted Manuscript
Year:2019
Number of pages:Str. 291-304
Numbering:Vol. 127
PID:20.500.12556/RUL-108298 This link opens in a new window
UDC:531:621.86.01:669.721.5(045)
ISSN on article:0142-1123
DOI:10.1016/j.ijfatigue.2019.06.009 This link opens in a new window
COBISS.SI-ID:16674075 This link opens in a new window
Publication date in RUL:27.06.2019
Views:1098
Downloads:440
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Record is a part of a journal

Title:International journal of fatigue
Shortened title:Int. j. fatigue
Publisher:Elsevier
ISSN:0142-1123
COBISS.SI-ID:25643520 This link opens in a new window

Secondary language

Language:Slovenian
Keywords:enoosno obremenjevanje, obremenjevanje s spremenljivo amplitudo, magnezijeve zlitine, materialni modeli, reološki modeli, enostranski operatorji, Prandtl-Ishlinskii operatorji

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P2-0182
Name:Razvojna vrednotenja, Ekološki varen avtomobil za zeleno mobilnost
Acronym:EVA4green

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