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Prikaz rezultata 21-30 od 109
Crack resistance of aluminium alloy friction stir welded joint
(Institut za ispitivanje materijala, Beograd, 2015)
Charpy testing is conducted on a high-speed data acquisition instrument, using instrumented pendulum to separate energies for crack initiation and propagation. The J-R curves are used to determine JIc, as the measure of ...
Eksperimentalna analiza ponašanja loma nerđajućeg čelika za biomedicinsku primenu / Experimental analysis of fracture behaviour of stainless steel used for biomedical applications
(Institut za ispitivanje materijala, Beograd, 2012)
U ovom radu je predstavljena analiza materijala od nerđajućeg čelika, koji se primenjuje kao biomaterijal za biomedicinske svrhe, kao što su veštački implanti zglobova, a sa gledišta mehanike loma. Parametri projektovanja, ...
Uticaj orijentacije vlakna na karakteristike loma kompozita tipa staklena vlakna-epoksi smola / The effect of fibre orientation on fracture properties of glass fibre-epoxy composite
(Institut za ispitivanje materijala, Beograd, 2012)
Ispitivanjem Šarpi epruveta sa V zarezom u radu je eksperimentalno analiziran uticaj orijentacije staklenih vlakana u matrici epoksi smole kompozita na udarno opterećenje i žilavost loma. Epruvete su izrađene iz uzoraka ...
Lom konstrukcije strele odlagača rotornog bagera C 700 S usled dinamičkih uticaja / The structure failure of the discharge boom of bucket wheel excavator C 700 S due to dynamic effects
(Institut za ispitivanje materijala, Beograd, 2012)
Tokom operacije, kod rotornog bagera (BWE) se razvilo nepovoljno dinamičko ponašanje, plastična deformacija i lom konstrukcije. Posle sprovedene eksperimentalne/numeričke analize, potvrđeno je rezonantno dinamičko ponašanje ...
Korelacija digitalne slike u analizi eksperimentalne mehanike / Digital image correlation in experimental mechanical analysis
(Institut za ispitivanje materijala, Beograd, 2012)
Korelacija digitalne slike (DIC) je moćna beskontaktna tehnika za merenje polja pomeranja/deformacija na površinama. Neke metode, zasnivane na 2D analizi, se koriste za određivanje mehaničkih osobina epruveta jednostavnih ...
Surface modification of laser welded nimonic 263 sheets
(Institut za ispitivanje materijala, Beograd, 2015)
Laser surface treatment is both a thermomechanical and mechanical process, based on the ability of a high energy laser pulse to generate shock waves and plastic deformation in metallic materials. Laser welding is a high ...
Experimental and numerical cross-correlated modal analysis of the floor structure dynamics in a thermal power plant
(Institut za ispitivanje materijala, Beograd, 2015)
This article presents search methodology after the cause of excessive floor vibrations in a thermal power plant control room. The floor structure is a composition of a steel grillage and concrete slabs at 12 m level above ...
Unapredenje industrijske bezbednosti kranskih kabina / Industrial safety improvement of crane cabins
(Institut za ispitivanje materijala, Beograd, 2015)
Cranes significantly contribute to efficient work progress but also have a great potential to cause large life and financial losses. Cranes today do not meet the needs of large proportion of operators, therefore making ...
Numerical predictions of crack growth in a pressure vessel with welded nozzles
(Institut za ispitivanje materijala, Beograd, 2015)
Most structural elements that represent parts of equipment and machines in the process industry are subjected to strength calculations. Structural materials and welded joints typically contain flaws and microcracks, from ...
Uticaj ljudskog faktora na rizik u rudniku površinskog kopa / Influence of the human factor on risks in an open-pit mine
(Institut za ispitivanje materijala, Beograd, 2015)
Today's turbulent business conditions are characterized by rapid technological development of the 'post-industrial' society. New technologies have caused the creation of new risks in complex techno-socio-ecological systems ...