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Thermomechanical modelling the resistance welding of PbSb alloy
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2010)
The analytical modelling of the PbSb alloy resistance spot welding process has been developed on the basis of mathematical analysis of thermomechanical conservation laws. The numerical solution of partial differential ...
Study on impact properties of creep-resistant steel thermally simulated heat affected zone
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
The steam pipe line and steam line material, along with its welded joints, subject to damage that accumulates during operation in coal power plants. As a result of thermal fatigue, dilatation of steam pipe line at an ...
Theoretical-experimental determining of cooling time (t8/5) in hard facing of steels for forging dies
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2010)
This paper investigates the accuracy of analytical, empirical, and numerical expressions, i. e. the most favourable methods for calculating the cooling time from 800 to 500°C (t8/5). The degree of accuracy of time t8/5 is ...
A coupled thermo-mechanical model of friction stir welding
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
A coupled thermo-mechanical model was developed to study the temperature fields, the plunge force and the plastic deformations of Al alloy 2024-T351 under different rotating speed: 350, 400, and 450 rpm, during the friction ...
Application and design of an economizer for waste heat recoveryin a co-generation plant
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
Energy increase cost has required its more effective use. However, many industrial heating processes generate waste energy. Use of waste-heat recovery systems decreases energy consumption. This paper presents case study ...
Experimental investigation of rockwool insulation hygrothermal properties related to material structure
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2015)
The hygrothermal properties related to rockwool insulation material structure with different additives are presented using rockwool insulation products obtained from row material of southern Serbia (Vranje region) in the ...
Heat input effect of friction stir welding on aluminum alloy aa 6061-t6 welded joint
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
The paper deals with the heat input and maximum temperature developed during friction stir welding with different parameters. Aluminum alloy (AA 6061-T6) has been used for experimental and numerical analysis. Experimental ...
Temperature and heat effects on polyethylene behaviour in the presence of imperfections
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
This paper highlights the changes of polyethylene behaviour during various loading rates as well as the influence of test temperature on the material characteristics. Passive infrared thermography method and a high speed ...
determining the reliability function of the thermal power system in power plant "nikola tesla, block b1"
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2015)
Representation of probabilistic technique for evaluation of thermal power system reliability is the main subject of this paper. The system of thermal power plant under study consists of three subsystems and the reliability ...
Effects of operation temperature on thermal expansion and main parameters of radial ball bearings
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2015)
The research of influence of operation temperature on the thermal expansion and main parameters of radial ball bearings is presented in this paper. The main bearing parameters are identified in accordance with the increasing ...