Siberian Federal University 
- Issue
- Journal of Siberian Federal University. Mathematics & Physics. 2021 14 (6)
- Authors
- Bazhenov, Valentin G.; Zhestkov, Maxim N.
- Contact information
- Bazhenov, Valentin G.: Nizhny Novgorod State Lobachevski University Nizhny Novgorod, Russian Federation; ; Zhestkov, Maxim N.: Nizhny Novgorod State Lobachevski University Nizhny Novgorod, Russian Federation;
- Keywords
- porous metal; diagramm of deformation; deformation; 3D-similarity principle; structural element
- Abstract
It is proposed to numerically model large deformations of porous specimens, using the 3D- similarity principle in structural elements, which makes it possible to account for the inhomogeneity of the stress-strain state due to the presence of pores and allows one to vary the number of representa- tive volumes without changing porosity values and dimensions of the specimens. A methodology for determining true deformation diagrams of materials, using the results of compression tests, has been de- veloped. The efficiency of using the 3D-similarity principle is demonstrated by comparing the numerical and experimental results for the example analyzing compression of porous specimens of an aluminum alloy with free lateral surfaces and fixed in a rigid cartridge
- Pages
- 746–755
- DOI
- 10.17516/1997-1397-2021-14-6-746-755
- Paper at repository of SibFU
- https://elib.sfu-kras.ru/handle/2311/144759
Journal of Siberian Federal University. Mathematics & Physics / Computer Modeling Deformation of Porous Elastoplastic Materials and Identification their Characteristics Using the Principle of Three-dimensional Similarity
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