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Structural life assessment of oil rig pipes made of api j55 steel by high frequency welding
(University of Osijek, Tech Fac, Slavonski Brod, 2013)
Structural life of welded pipes made of API J55 steel by high-frequency (HF) welding has been evaluated. Experimental tests of base metal mechanical properties, including fatigue properties, were conducted on pipes after ...
Analysis of mechanical and structural properties of micro alloyed steel welded joints depending on quality of cored wire
(University of Osijek, Tech Fac, Slavonski Brod, 2013)
The aim of this study was to master new quality cored wires made of steel strips and the cores filled with metal powders and low molecular hydrophobic compounds. For experimental research, the specimens were made of micro ...
Corrosion resistance of high pressure torsion obtained commercially pure titanium in acidic solution
(University of Osijek, Tech Fac, Slavonski Brod, 2017)
The enhancement of commercially pure titanium (cpTi) mechanical properties, which is required for its medical application, can be achieved by grain refinement obtained by severe plastic deformation. In addition to mechanical ...
Integrity assessment of bucket wheel excavator welded structures by using the single selection method
(University of Osijek, Tech Fac, Slavonski Brod, 2013)
In order to reduce the testing costs for structural welded joints and production losses due to excavator standstill, a new method for integrity and reliability assessment of welded joints during exploitation of bucket wheel ...
Effect of welded joint imperfection on the integrity of pipe elbows subjected to internal pressure
(University of Osijek, Tech Fac, Slavonski Brod, 2013)
Since local defects reduce the load-carrying capacity and deformation ability of a piping system, an analysis is undertaken to quantify the influence of weld defects on integrity of the pipe elbows subjected to internal ...
Consideration of a moving mass effect on dynamic behaviour of a jib crane structure
(University of Osijek, Tech Fac, Slavonski Brod, 2012)
This work examines the dynamics of a two-dimensional jib crane structure subjected to a moving trolley with hoist and payload. Dynamic responses of the structure, both in the vertical (Y) and horizontal direction (X), are ...