Št. zadetkov: 19
Izvirni znanstveni članek
Oznake:
low carbon steel;static work hardening;dynamic work hardening;stataaic properties;fatigue properties;
The influence of strain rate on mechanical properties and fatigue resistance of low carbon steel (C content 0.04%) is shown. Experimental results are analysed and relations derived describing the dependence of yield strength and ultimate tensile strength on prior strain rate in the range from ▫$10^{ ...
Leto:
1998
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
plastična deformacija;reologija;deformacijske anomalije;kontaktno trenje;homogena deformacija;plastic deformation;rheology;deformation anomalies;contact friction;homogeneous deformation;
The deformation anomalies of higher orders at plastometric test are studied one easily deformable lead alloys-models of different rheological complexity by original testing methods. It is ascertained that the development of deformation anomalies depends upon the degree of rheological complexity of t ...
Leto:
1994
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
reologija;raztržni preizkus;deformacije;heterogenosti;rheology;tensile test;deformation;heterogeneities;
New deformation anomalies of rheologically complex materials were discovered and demonstrated. It was found out that in the process of axial extention during the decrease of resistance to deformation secondary deformation heterogeneities take place alternated with deformation homogeneities due to ch ...
Leto:
1994
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
wheels;steel;aluminium;finite elements;strength;buckling;
A two-layer ring of various thickness from and aluminium and a wheel in the shape of steel ring with steel or aluminium spokes were analysed by the FEM. In the first problem the plasticity of material was considered, and in the second, also- the possibility of spokes buckling. Conclusions about the ...
Leto:
1998
Vir:
dLib.si Digitalna knjižnica Slovenije
Polemika, diskusijski prispevek
Oznake:
književnost;pouk književnosti;
Leto:
1959
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
lubrication;metal forming Reynolds differential equation;Monte-Carlo method;
We present a survey of the most frequently used equations for applications in cold drawing and rolling, for smooth and rough surfaces, for the effect of lubricant inertial forces, for more advanced theoretical solutions as well as the equations for cold drawing with a solid lubricant and the combina ...
Leto:
2009
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
seamless tubes;rolling;lubrication;
Leto:
2008
Vir:
dLib.si Digitalna knjižnica Slovenije
Pregledni znanstveni članek
Oznake:
lubricants;emulsions;suspensions;Reynolds equations;lubricants toxicity;surface roughness;
A survey is given over lubricants for rolling and drawing of metals. Emulsions, suspensions, natural fats and oils and synthetic lubricants are presented. Fluid mechanics Reynolds equations are used for the calculation of the lubricant lyer in the entering section of the metals deformation zone. Col ...
Leto:
2005
Vir:
dLib.si Digitalna knjižnica Slovenije
Strokovni članek
Oznake:
informatica;internet portal;knowledge representation;model;ontology;strength of materials;
We present an approach to the development of a specialized-knowledge Internet portal for work with large quantities of information and computational resources in the field of strength of materials. The ontology-based portal provides an information basis for the design of alloys represented by the ch ...
Leto:
2012
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
cold rolling;lubrification;lubricant inertia;gripping angle;Reynolds equation;Monte Carlo method;
Modern rolling mills operate at speed requiring the consideration of inertial forces for the explanation of the behaviour of lubricant layer in the enter gap of the metal deformation zone. For this calculation a similarity criterium and the improved Mizun-Grudev equation were applied. Good results w ...
Leto:
2011
Vir:
dLib.si Digitalna knjižnica Slovenije