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Effect of plasma hardfacing and carbides presence on the occurrence of cracks and microcracks
(Institut za ispitivanje materijala, Beograd, 2018)
Presented is the effect of plasma hardfacing (or just hardfacing) and carbides presence on the occurrence of cracks and microcracks in the welded layer. The reasons behind this phenomenon are analysed and explained. In ...
Numerical analysis of stress distribution in total hip replacement implant
(Institut za ispitivanje materijala, Beograd, 2017)
Total hip replacement implants represent permanent implants and require large bone and cartilage removal during implantation. Revision would affect joint capability to sustain load, which makes this procedure irreversible. ...
Klasifikacija opreme pod pritiskom prema direktivi 2014/68/EU i regulativi 1272/2008/EU / Classification of pressure equipment according to directive 2014/68/EU and regulation no 1272/2008/EU
(Institut za ispitivanje materijala, Beograd, 2016)
For the first time after 17 years the Directive 97/23/EC of the European Council and the Council on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment ...
Crack initiation and propagation resistance of hsla steel welded joint constituents
(Institut za ispitivanje materijala, Beograd, 2020)
The welded joint is heterogeneous in its microstructure, mechanical and geometrical properties, thus the stress field is affected by different factors as well as by residual stress. Therefore, special procedures are needed ...
Manufacturing and integrity of ammonia storage tanks
(Institut za ispitivanje materijala, Beograd, 2020)
Manufacturing ammonia storage tanks represents a very demanding and responsible task. The paper presents the methodology for manufacturing two ammonia storage tanks in Russia, along with all the necessary steps. The base ...
Load and deformation effects on brittle fracture of ferritic steel 20МnМoНi 55 in temperature transition region
(Institut za ispitivanje materijala, Beograd, 2020)
It is known that the load level, the way deformation is applied and the level of plastic strain, all can 'aid' or 'hinder' the occurrence of brittle fracture, but the question is - to what extent? These influential factors ...
Linear elastic and elasto-plastic aspects of interface fracture mechanics
(Institut za ispitivanje materijala, Beograd, 2020)
This paper is written on the occasion of J.R. Rice's 80th birthday. Basically, it presents two aspects of interface fracture mechanics, linear elastic and elasto-plastic, both of them reflecting the long experience of the ...
External atmospheric influences on the mechanical properties of resin-bonded grinding wheels with aluminium oxide and silicon carbide grains
(Institut za ispitivanje materijala, Beograd, 2020)
Ageing effects on resin-bonded grinding wheel properties are presented, including aluminium oxide and silicon carbide influence. Furthermore, humidity is examined as the most likely cause of significant downgrade in ...
Fire resistance of boiler room building structure for liquid and gaseous fuels
(Institut za ispitivanje materijala, Beograd, 2021)
Significant limitation of the methodology for determining the class of fire resistance, defined by the group of standards DIN 18230, is its inapplicability to industrial facilities in which energy is produced or distributed. ...
Welding safety by using a new model of welders' recertification in the oil and gas industry
(Institut za ispitivanje materijala, Beograd, 2021)
The paper presents a solution applied for determining the quality of the welding process in oil and gas industrial plants, as well as reliable verification of professional qualification of welding personnel. By applying ...