A direct approach to modelling the complex response of magnesium AZ31 alloy sheets to variable strain amplitude loading using Prandtl-Ishlinskii operators

Šolinc, Urša (author), Klemenc, Jernej (author), Nagode, Marko (author), Šeruga, Domen (author)

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
• UDC: 531:621.86.01:669.721.5(045)
• ISSN on article: 0142-1123
• DOI: 10.1016/j.ijfatigue.2019.06.009
• COBISS.SI-ID: 16674075
• Publication date in RUL: 27.06.2019

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

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