WebJan 1, 2024 · Although it is known that the material properties of steel and its welded joints change with decreasing temperatures, little research has been done on fatigue strength at sub-zero... WebSep 1, 2024 · The fatigue resistance of welded joints was increased by 24% and 36% by using the CFP and UIT, respectively. The fatigue performance of welded joints was evaluated using three different...
Rolling contact fatigue damage in welded rail steel joints
WebApr 7, 2024 · Flash−butt welded rail is widely used in railway transportation; however, the welded joint is vulnerable after a long time of service, and its damage mechanism is controversial. WebJan 1, 2012 · For the first three stages, EN 13749 contains the relevant load assumptions for different railway applications, which are normative load requirements. According to this standard, it is possible to demonstrate the fatigue strength by the endurance limit approach and the cumulative damage approach. blackened cod fish recipes oven
Fatigue life prediction of welded joints with artificial corrosion pits ...
WebWhen the depth is less than 0.1 mm, fatigue damage is not relevant, regardless of the length. When the depth is greater than 0.3 mm, fatigue damage increases significantly with the decreasing of the joint length, especially when the length is less than 150 mm. When the welded joints are long enough, the depth restriction can be relaxed. This ... WebJan 1, 2012 · The fatigue evaluation is possible with the requirements of the guideline DVS 1612 [6], which is valid for the endurance limit approach of welded joints of railway … WebFeb 20, 2024 · As the figure above shows, a 10% variation in the stress can mean a difference of more than a factor of two in the number of cycles to failure (or even more in steel alloys). Thus, determining the stress at the weld with a good level of confidence is crucial for predicting the fatigue life of the weld. blackened cod with mango salsa