Pretraživanje
Prikaz rezultata 51-60 od 185
Modelling of ductile fracture initiation in strength mismatched welded joint
(Pergamon-Elsevier Science Ltd, Oxford, 2008)
In this paper, the effect of strength mismatch and width of the welded joints oil the stress-strain distribution in the crack tip region has been discussed. The single-edge notched bend (SENB) specimens (precrack length ...
Radiation Absorption Characteristics of Titanium Alloys
(Polish Acad Sciences Inst Physics, Warsaw, 2009)
Titanium alloys have found numerous applications in space research, and nuclear industry and research. Since X-rays constitute an important part of the space radiation environment, numerical simulations of radiation ...
Evaluation of damage of steam pipeline steel using local approach to fracture
(American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, 2008)
In the paper, the level of damage of steam pipeline steel after about 100,000 hours at 540°C (1004 °F) under pressure of 42 bars (609 PSI) is analyzed. Material degradation is estimated using a combined experimental and ...
Termohidraulika isparivača ložišta parnog kotla sa prinudnom cirkulacijom / Thermal-hydraulics of evaporating tubes in the forced circulation loop of a steam boiler
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2008)
Elektroprivreda Srbije je u toku 2005. godine nastavila radove na izgradnji TE Kolubara B snage 350 MW, koji su započeti još davne 1989. godine. Sam kotao je toranjske konstrukcije, a za isparivač kotla predviđeno je ...
Reparation of the damaged forging hammer mallet by hard facing and weld cladding
(Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek, 2009)
In this paper the problems related to the maintenance of large forging mallets of pneumatic hammers including hard facing of cracked or worn working surfaces are considered. Actually, the choice of optimum technology for ...
Sanacija i rekonstrukcija autoklava / Overhaul and reconstruction of an autoclave
(Institut za ispitivanje materijala, Beograd, 2008)
Izveden je projekt sanacije i rekonstrukcije autoklava, bitnog dela opreme za sušenje uglja, po zahtevu kompanije Kolubara Prerada-Vreoci. Autoklavi rade pod pritiskom na povišenoj temperaturi. U toku eksploatacije na njima ...
Uticaj sopstvenih učestanosti na inicijaciju prslina kućišta zupčaste pumpe / Influence of eigen frequencies on crack initiation in gear pump housing
(Institut za ispitivanje materijala, Beograd, 2009)
Razmotreni su osnovni teorijski aspekti dinamičke analize konstrukcija i analiziran poseban primer kućišta jedne zupčaste pumpe visokog pritiska. Model konstrukcije je baziran na 3D elementima. Korišćen je programski paket ...
Welded penstock, produced of high-strength steel and application of fracture mechanics parameters to structural integrity assessment
(Springer, Dordrecht, 2008)
Application of high-strength steel for welded penstock increased the probability of crack-like defects and in welded joint. Structural integrity assessment procedure is presented and applied to welded penstock produced of ...
Facility management - Teorijski okviri i primena u praksi / Facility management theoretical framework and application in practice
(Institut za istraživanja i projektovanja u privredi, Beograd, 2007)
Real estate is one of the most important parts of a corporate capital, as well as of wealth of an individual or a society; and management and maintenance of the built environment are connected with huge costs that owners ...
The austempering study of alloyed ductile iron
(Elsevier Sci Ltd, Oxford, 2006)
Austempered ductile iron (ADI) proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties can ...