A fast and increment independent technique for continuous calculation of the strain energy dissipated during cyclic loading applied to magnesium alloy AZ31

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

The paper introduces a method for calculating the strain energy dissipated during cyclic loading based on Prandtl-Ishlinskii hysteresis operators. The dissipated strain energy is cal- culated continuously throughout the loading procedure, the main advantage of the method being independence from the incremental step size. The Prandtl-Ishlinskii energy model is applied to a rheological model for magnesium alloy AZ31 that correctly simulates the material's complex response when subjected to arbitrary uniaxial loading at room temperature. This approach gives a fast and accurate value of the dissipated strain energy which in turn can be used for estimating the fatigue life of magnesium alloys.

• Language: English
• Keywords: Prandtl operators, magnesium alloy, elastoplasticity, dissipated energy, fatigue
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2020
• Number of pages: Str. 1-11
• Numbering: Vol. 139
• PID: 20.500.12556/RUL-117497
• UDC: 620.178.3:669.721.5(045)
• ISSN on article: 0142-1123
• DOI: 10.1016/j.ijfatigue.2020.105779
• COBISS.SI-ID: 22466563
• Publication date in RUL: 14.07.2020

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: Prandtlovi operatorji, magnezijeva zlitina, elastoplastičnost, disipirana energija, utrujanje

Projects

• Funder: Other - Other funder or multiple funders
• Name: Ekološki Varen Avtomobil za zeleno mobilnost
• Acronym: EVA4green

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0182
• Name: Razvojna vrednotenja