Determination of stress-strain behaviour of magnesium alloy AZ31 under variable thermomechanical loading
ID Šeruga, Domen (Author), ID Bešter, Tomaž (Author), ID Nagode, Marko (Author), ID Klemenc, Jernej (Author)

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Growing environmental demands and higher fuel efficiency encourage the use of new light-weight load-bearing materials even for operation under rougher environmental conditions. Consequently, as the materials used in the vital load-bearing components of the chassis, brake system or exhaust system are subjected to thermomechanical fatigue during the operation due to variable mechanical and thermal loads, it is crucial for design engineers and CAE analysts to understand the cyclic behaviour of new materials under such conditions. Here we have analysed the stress-strain behaviour of magnesium alloy AZ31 and the influence of variable thermomechanical loads. A uniaxially loaded flat specimen has been first mechanically loaded at -25°C. The temperature was then increased to 150°C whilst the variable mechanical loading remained unchanged. The tests have been strain-controlled using a video extensometer. The stress-strain behaviour of the magnesium alloy AZ31 has been then investigated considering both variable temperature and variable mechanical load.

Keywords:dissipated energy, durability, magnesium alloy AZ31, stress-strain behaviour, thermomechanical fatigue
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status in journal:Published
Article version:Postprint, final article version, accepted into publication
Number of pages:f. 1125-1133
Numbering:Vol. 44, iss. 4
PID:20.500.12556/RUL-124376 This link opens in a new window
ISSN on article:1460-2695
DOI:10.1111/ffe.13417 This link opens in a new window
COBISS.SI-ID:47629571 This link opens in a new window
Publication date in RUL:19.01.2021
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Record is a part of a journal

Title:Fatigue & fracture of engineering materials & structures
Shortened title:Fatigue fract. eng. mater. struct.
Publisher:Pergamon Press
COBISS.SI-ID:517710105 This link opens in a new window

Secondary language

Keywords:disipirana energija, zdržljivost, magnezijeva zlitina AZ31, napetostno-deformacijsko obnašanje, termomehansko utrujanje


Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0182
Name:Razvojna vrednotenja

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