Prethodno priopćenje

https://doi.org/10.17559/TV-20181106002705

An Upper Bound Solution for Continued Compression of a Cylinder

Sergei Alexandrov ; Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, 19 Nguyen Huu Tho Street, Ho Chi Minh City 700000, Vietnam; Faculty of Civil Engineering, Ton Duc Thang University, 19 Nguyen Huu Tho Str
Dmitry Lisovenko ; Ishlinsky Institute for Problems in Mechanics RAS, 101-1 Prospect Vernadskogo, 119526 Moscow, Russia
Marko Vilotic orcid.org/0000-0002-1945-0007 ; Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovica 6, 21000 Novi Sad, Serbia

Sažetak

A sequential upper bound method for the cylindrical compression test is developed. The method uses rigid and plastic regions to build up a kinematically admissible velocity field. A technique for calculating the power dissipation in continued compression is described. A numerical method is only necessary to evaluate ordinary integrals. An illustrative example presented shows that some important parameters of the process are not sensitive to the friction factor if its value is high enough. This observation is in qualitative agreement with a finite element solution.

Ključne riječi

continued compression; friction; rigid region; singularity; upper bound method

Hrčak ID:

236821

URI

https://hrcak.srce.hr/236821

Datum izdavanja:

15.4.2020.

Posjeta: 1.012 *