Miodrag Arsic
Principal Research Fellow
Institute for materials testing - IMS, Belgrade
Srdjan Bosnjak
Full Professor
Faculty of Mechanical Engineering, University of Belgrade, Serbia
Nebojsa Gnjatovic
Assistant Professor
Faculty of Mechanical Engineering, University of Belgrade, Serbia
Mladen Mladenovic
Other
Institute for materials testing - IMS, Belgrade
Zoran Savic
Other
Institute for materials testing - IMS, Belgrade
Principal Research Fellow
Institute for materials testing - IMS, Belgrade
Srdjan Bosnjak
Full Professor
Faculty of Mechanical Engineering, University of Belgrade, Serbia
Nebojsa Gnjatovic
Assistant Professor
Faculty of Mechanical Engineering, University of Belgrade, Serbia
Mladen Mladenovic
Other
Institute for materials testing - IMS, Belgrade
Zoran Savic
Other
Institute for materials testing - IMS, Belgrade
Assessment of integrity and service life of the upper ring of turbine runner guide vane apparatus at hydro power plant "Djerdap 1"
During the rehabilitation of the hydroelectric generating set A6 at hydro power plant ’Djerdap 1’, state analysis and integrity assessment were carried out for all vital components and structures.
In this paper the results of the check of load carrying capacity of welded joints are presented, taking into account all weakened cross-sections. Determination of load carrying capacity and fatigue strength were carried out in the usual way, as well as the stress state analysis performed through the use of finite element method in order to determine the influence of undercuts. Assessment of integrity and service life of the guide vane apparatus based on the influence of cracks on stress distribution and fracture mechanics parameters was also carried out.
