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22 pages, 3542 KB  
Article
An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens
by Maxim Lutovinov, Radim Halama, Jan Papuga, Michal Bartošák, Jiří Kuželka and Milan Růžička
Materials 2022, 15(4), 1432; https://doi.org/10.3390/ma15041432 - 15 Feb 2022
Cited by 3 | Viewed by 2966
Abstract
The paper deals with an approximate method for calculating elastic–plastic stresses and strains on the surface of notched samples. The method is based on the Abdel–Karim–Ohno cyclic plasticity model. The plane stress condition is considered within the evaluation. The output of the approximation [...] Read more.
The paper deals with an approximate method for calculating elastic–plastic stresses and strains on the surface of notched samples. The method is based on the Abdel–Karim–Ohno cyclic plasticity model. The plane stress condition is considered within the evaluation. The output of the approximation on several multiaxial axial–torsion load paths is compared to our own experimental results. Experiments were carried out on samples of two notch types manufactured from the 2124-T851 aluminum alloy. Strain distribution in the notch area was measured by digital image correlation. The comparison between computational solution and measured response shows that the new method allows for obtaining reasonably good approximation, even for relatively complicated multiaxial load cases. Full article
(This article belongs to the Special Issue Progress in Plastic Deformation of Metals and Alloys)
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