Results 31 to 40 of about 1,619,251 (342)

Analysis of Al-Cu Bimetallic Bars Properties After Explosive Welding and Rolling in Modified Passes

open access: yesArchives of Metallurgy and Materials, 2015
The paper presents the results of the experimental tests of Al-Cu bimetallic bars rolling process in multi-radial modified passes. The bimetallic bars consist of aluminium core, grade 1050A and copper outer layer, grade M1E.
Mróz S.   +4 more
doaj   +1 more source

Orbital Support of Fast and Slow Inner Bars in Double Barred Galaxies

open access: yes, 2010
We analyze how the orbital support of the inner bar in a double-barred galaxy (nested bars) depends on the angular velocity (i.e. pattern speed) of this bar. We study orbits in seven models of double bars using the method of invariant loops. The range of
Athanassoula   +21 more
core   +1 more source

Research on Extruded Products of Mgalzn Alloys – Microstructure and Mechanical Properties / Badania Wyrobów Wyciskanych Ze Stopów Mgalzn – Mikrostruktura I Właściwości Mechaniczne

open access: yesArchives of Metallurgy and Materials, 2015
The aim of the study was to test and assess products extruded from the magnesium alloys type MgAlZn: AZ31, AZ61 and AZ80A alloys in the form of Ø35mm round bars and 80x15mm flat bars.
Płonka B.   +4 more
doaj   +1 more source

Bulges or Bars from Secular Evolution?

open access: yes, 2004
We use high resolution collisionless $N$-body simulations to study the secular evolution of disk galaxies and in particular the final properties of disks that suffer a bar and perhaps a bar-buckling instability.
Carollo, C. Marcella   +3 more
core   +3 more sources

Theoretical and experimental analysis of the Cu-Al bimetallic bar rolling process [PDF]

open access: yesMetalurgija, 2011
In this study, the authors present the results of their theoretical and experimental analysis of the rolling process of Cu – Al bimetallic bars in elongation passes. The original bars were round aluminium bar, covered with copper layer.
S. Mróz, P. Szota, H. Dyja, A. Kawałek
doaj  

Effect of shear and rotatory inertia on the bending vibration method without weighing specimens

open access: yesJournal of Wood Science, 2020
This study examines the effect of shear and rotatory inertia on the accuracy of the vibration method with additional mass (VAM). Bending vibration tests were performed for rectangular bars with a width of 30 mm, thicknesses ranging from 5 to 60 mm, and a
Yoshitaka Kubojima   +3 more
doaj   +1 more source

Dynamic size effects across the scales: Localization in round notched bars

open access: yesInternational Journal of Solids and Structures, 2022
The strengthening and hardening of metals increase with diminishing size due to plastic strain gradient accompanied by Geometrically Necessary Dislocations (GNDs). In contrast, the inertia forces under severe dynamic loading conditions decrease.
R.G. Andersen, K.L. Nielsen
openaire   +2 more sources

Influence of elongation factor on distributions of effective strain and flow stress for pushing through a conical die process of round bars made from S355 steel

open access: yesMATEC Web of Conferences, 2019
The paper presents computer modelling results of researches on pushing through a conical die process of round bars. Calculations were carried out using the commercial code QFORM-2D, based on the Finite Element Method (FEM).
Miłek Tomasz
doaj   +1 more source

Fracture Toughness Evaluation of S355 Steel Using Circumferentially Notched Round Bars

open access: yes, 2018
In engineering applications, steels are commonly used in various areas. The mechanical members are exposed to different loading conditions and this subject can be investigated in fracture mechanics.
F. Bozkurt, E. Schmidová
semanticscholar   +1 more source

A Statistical Approach for Study of Roundness in Commercially Produced Round Metal Bars

open access: yesEuropean Journal of Theoretical and Applied Sciences, 2023
Commercially produced ferrous and non-ferrous metal round bars are available at various sizes. These bars have tremendous engineering use in multiple areas like automobile, aerospace, power, manufacturing, paper, printing, packaging and construction industries.
Sanjib Roy, Arun Kiran Pal
openaire   +1 more source

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