Careful finite element simulations of cold rolling with accurate through-thickness resolution and prediction of residual stress
Metal rolling is a widespread and well-studied process, and many finite-element (FE) rolling
simulations can be found in the scientific literature. However, these FE simulations are …
simulations can be found in the scientific literature. However, these FE simulations are …
Steady planar ideal flow of anisotropic materials
S Alexandrov, Y Mustafa, E Lyamina - Meccanica, 2016 - Springer
This paper extends the ideal flow theory, which is well known for isotropic rigid perfectly
plastic materials, to quite general orthotropic materials which comply with the principle of …
plastic materials, to quite general orthotropic materials which comply with the principle of …
A general kinematically admissible velocity field for axisymmetric forging and its application to hollow disk forging
S Alexandrov, E Lyamina, YR Jeng - The International Journal of …, 2017 - Springer
An approach for selecting general kinematically admissible velocity fields for axisymmetric
forging problems is outlined. The approach accounts for the existence of a rigid zone at …
forging problems is outlined. The approach accounts for the existence of a rigid zone at …
[PDF][PDF] Analytical Model for the Material Flow during Cold Rolling
An analytical description of conventional cold rolling, is developed with a novel
mathematical algorithm, based on finite element (FEM) and flow-line (FLM) method …
mathematical algorithm, based on finite element (FEM) and flow-line (FLM) method …
[PDF][PDF] Metalforming methods dedicated for aerospace industry
J Szyndler, L Madej - Computer Methods in Materials Science, 2015 - cmms.agh.edu.pl
Detailed analysis of different metalforming methods of light and durable integral elements
dedicated for the aerospace industry is the main aim of the work. Description of an integral …
dedicated for the aerospace industry is the main aim of the work. Description of an integral …
Extension of Orowan's method to analysis of rolling of three-layer sheets
S Alexandrov, E Lyamina - Procedia Engineering, 2017 - Elsevier
This paper presents a generalization of the popular approach of Orowan for calculating the
roll pressure in flat rolling of homogeneous strips on three-layer sheets. In contrast to the …
roll pressure in flat rolling of homogeneous strips on three-layer sheets. In contrast to the …
Prediction of plate crown during aluminum hot flat rolling by finite element modeling
The roll deflection during hot rolling can result in uneven thickness distribution across the
width of a plate (crown). A conventional rolling mill is equipped with bending systems that …
width of a plate (crown). A conventional rolling mill is equipped with bending systems that …
An upper bound solution for continued compression of a cylinder
S Alexandrov, D Lisovenko, M Vilotic - Tehnički vjesnik, 2020 - hrcak.srce.hr
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 …
The method uses rigid and plastic regions to build up a kinematically admissible velocity …
Plane strain bending under tension as an ideal flow process in pressure–dependent plasticity
S Alexandrov, P Date - MATEC Web of Conferences, 2017 - matec-conferences.org
Ideal plastic flows are those for which all material elements follow minimum work paths.
Ideal flow solutions are widely used as the basis for inverse methods for the preliminary …
Ideal flow solutions are widely used as the basis for inverse methods for the preliminary …
Study of Deformation in Cold Rolled Al Sheets
In this study, the deformation flow in cold rolled aluminum sheets was examined. For
modeling purposes, we employed the DEFORM 2D finite element code with an inbuilt …
modeling purposes, we employed the DEFORM 2D finite element code with an inbuilt …