Increasing fatigue crack initiation life in butt-welded UIC60 rail by optimization of welding process parameters
Source abstract
Abstract
Abstract In this work, to reduce the fracture in butt-welded rail under service loads, a numerical study is carried out to estimate the crack initiation life. For this purpose, the J-S model in terms of the critical plane method is used. To increase the fatigue life of the welded joint, considering the amount of fractured butt welded joints in the railway of the Iranian network, the important variables of the flash-butt welding process are optimized. To this end, the welding process modeling in Abaqus is converted to Python code, and by using a coupled procedure utilizing Matlab, the optimization process is performed by the imperialist competitive algorithm (ICA). The capability of each governing variable on increasing crack initiation life is discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Railway Engineering and Dynamics · Fatigue and fracture mechanics · Mechanical stress and fatigue analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
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