Mathematical modeling of drawing rods made of titanium sponge allowing for pore formation
| Autor: | A. P. Polyakov, I. M. Berezin |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0209 industrial biotechnology
Materials science Metals and Alloys Nucleation chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Rod Surfaces Coatings and Films 020901 industrial engineering & automation chemistry Mechanics of Materials Volume fraction Ultimate tensile strength Elongation Composite material Deformation (engineering) 0210 nano-technology Porosity Titanium |
| Zdroj: | Russian Journal of Non-Ferrous Metals. 57:555-564 |
| ISSN: | 1934-970X 1067-8212 |
| DOI: | 10.3103/s1067821216060031 |
| Popis: | Mathematical modeling of drawing a billet formed by compacting a titanium sponge is performed in the ABAQUS engineering analysis software package, allowing for the possibility of pore formation during deformation. It is shown that the maximal porosity at small drawing is formed equally due to the variation in occurring pores and the appearance of a new defect; with an increase in the elongation, it is determined mainly by the growth of newly formed continuity defects, the nucleation region of which corresponds to the region of tensile stresses. The volume fraction of newly formed defects substantially affects the total porosity at large elongation and conicity angle, which increases the damage and can become the cause of rod break. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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