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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Fatigue testing and calculation of a conical pedicle screws for spine fusion
 Major, Štěpán ; Kocour, Vladimír ; Hubálovský, Š.
The main goal of spinal surgery is to stop the pain caused by joints that have worn out over time or degenerated due to disease. Spinal fusion joins together the vertebrae on either side of a joint in spine. Fixation with pedicle screws is one method which is used by surgeons for fusing the vertebrae in spine. Implants are subjected to many loading cycles during their life. Any damage to the implant leads to significant complications in the treatment and causes considerable pain. For this reason, it is necessary to pay close attention to testing and fatigue prediction of implants.
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Analysis of the effectiveness of the fatigue criteria for biaxial loading of notched specimen
 Major, Štěpán ; Valach, Jaroslav
This article deals with multiaxial fatigue strength of notched bars made of Cr-Al-Mo steel and tested under combined tension and torsion loading.
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Low cycle fatigue of notched specimens of austenitic steel AISI 321 at 23 and 325 °C
 Obrtlík, Karel ; Petrenec, Martin
Low cycle fatigue tests of notched specimens of AISI 321 steel were performed at 23 a 325 °C. Fatigue hardening/softening curves, fatigue life curves and cyclic stress-strain curves were evaluated.
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