An Upper Bound Solution for Continued Compression of a Cylinder

Autor:	Dmitry S. Lisovenko, Marko Vilotic, Sergei Alexandrov
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	continued compression friction rigid region singularity upper bound method Materials science General Engineering Mechanics Compression (physics) Upper and lower bounds Singularity lcsh:TA1-2040 Cylinder lcsh:Engineering (General). Civil engineering (General)
Zdroj:	Tehnički Vjesnik, Vol 27, Iss 2, Pp 627-632 (2020) Tehnički vjesnik Volume 27 Issue 2
ISSN:	1848-6339 1330-3651
Popis:	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.
Databáze:	OpenAIRE
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