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Now showing items 161-170 of 185
Klasifikacija eksploatacijskih oštećenja čeličnih užadi / Classification of in-service damages of Steel wire ropes
(Institut za ispitivanje materijala, Beograd, 2007)
Radni vek čeličnih užadi je ograničen zbog promene njihovih svojstava tokom eksploatacije pod dejstvom radnih uslova i opterećenja. Redovan nadzor tokom eksploatacije omogućava kontrolu razvoja oštećenja i normalni proces ...
Softver u oblasti ispitivanja metalnih materijala / Software in the field of the metal materials testing
(Savez inženjera metalurgije Srbije, Beograd, 2005)
Razvoj softvera u oblasti ispitivanja metala tekao je uporedo sa razvojem računarske opreme - hardvera. Osnovni cilj ovog rada je pokušaj pružanja pregleda postojećeg softvera u oblasti ispitivanja metala. Drugi postavljeni ...
Damage Level Estimate of API J55 Steel for Welded Seam Casing Pipes
(Croation Union of Mech. Engineers and Naval Architects, 2009)
The subject of this paper is investigation of the damage level of API J55 steel, used for manufacturing casing pipes by high frequency (HF) contact welding. The analysed pipe was withdrawn after about 70 000 hours of service ...
Measurement of strain using stereometry
(Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek, 2009)
This paper presents measurement of strain using stereometry method. It describes the use of digital stereometry to measure microstrains on the surface. This can be achieved by comparison of the images of point distribution ...
An Approach to the Optimization of a Thin-walled Z-beam
(Strojniski Vestnik/Journal of Mechanical Engineering, 2009)
One approach to the optimization of a thin-walled open section Z-beam subjected to bending and to the constrained torsion is considered. For given loads, material and geometrical characteristics the problem is reduced to ...
Uticaj orijentacije vlakana na udarnu žilavost i osobine loma kompozita ugljenična vlakna - epoksi smola / The effect of fiber orientation on impact toughness and fracture properties of carbon fiber-epoxy composite
(Institut za ispitivanje materijala, Beograd, 2002)
Uticaj orijentacije ugljeničnih vlakana u kompozitu sa epoksi matricom na udarnu žilavost i na žilavost loma je eksperimentalno analiziran ispitivanjem Šarpi epruveta sa V zarezom i zarezanih epruveta modifikovanog CT ...
Čelici za armiranje betona / Steels for concrete reinforcement
(Institut za ispitivanje materijala, Beograd, 2005)
Ispitivanje čelika u građevinarstvu danas uključuje obimnu aktivnost koja nije na pravi način prikazana u domaćoj stručnoj literaturi. Ispitivanje je od velikog značaja u slučaju čelika za armiranje betona, jer može doći ...
MKE model zupčanika sa kosim zupcima za analizu naponskog stanja i nelinearnu analizu kontakta / Finite element model for stress analysis and nonlinear contact analysis of helical gears
(Vojnotehnički institut, Beograd, 2009)
Određivanje naponskog i deformacionog stanja na bokovima i u podnožju zubaca jedan je od osnovnih zadataka u toku proračuna opterećenja i provere nosivosti zupčanika. U ovom radu opisan je postupak razvijanja modela konačnih ...
Ductile fracture prediction of steam pipeline steel
(Trans Tech Publications Ltd, Durnten-Zurich, 2006)
Considering the conditions to which steels used for the manufacture of steam pipelines are exposed, the micromechanism of their destruction in exploitation is exclusively the ductile one. In order to make an estimation of ...
Application of Complete Gurson Model for prediction of ductile fracture in welded steel joints
(Trans Tech Publications Ltd, 2009)
Ductile fracture process includes three stages: void nucleation, their growth and coalescence. The voids nucleate due to the fracture or separation of non-metallic inclusions and secondary-phase particles from the material ...