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>Effect of Different Loads on Fatigue Strength of 1040 Steel Materials After Design and Manufacturing of Rotating-Bending Fatigue Test Device
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Effect of Different Loads on Fatigue Strength of 1040 Steel Materials After Design and Manufacturing of Rotating-Bending Fatigue Test Device
In this study, after the design of a new fatigue test device, the manufacturing of the device was carried out. In the virtual environment, appropriate machine elements and connections were made for the fatigue test device. For the manufacturing of the fatigue testing device, considering economic factors and efficiencies, DEG Drive brand 2-pole MS 90L electric motor that had output power 2.2 kW and output speed 2840 RPM and that had aluminum housing and 1-2 alternating current (AC) was used. Fatigue in the machine elements as a destructive test is known as fracture or rupture as a result of repeated stress under yield strength. In terms of conventional calculation methods, strength calculations can be made according to elasticity theory, taking into account design, conditions of use, and other effects. However, in terms of fatigue strength, breaks that occur with cyclic stresses applied depending on time indicate that these calculations are not sufficient. In calculations performed under the influence of repetitive dynamic load, fatigue strength must be taken into account. In order for the fatigue test device to work safely, the appropriate materials were selected, the strength was calculated, and the dimensions of the sample holder collets were determined. After the manufacturing of the fatigue test device, fatigue strength, the number of cycles, and fracture form of 1040 steel material were examined under applied different loads.
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