Fatigue properties of AL/AL-MG alloy laminated materials for the applications to railway tank cars
Source abstract
Abstract
Abstract In this study, Al/Al-Mg alloy laminated plates were developed, and such composite materials are applied in a 70 t tank car for transporting concentrated nitric acids. The fatigue tests of the base materials and the lap-welded joint of the Al/Al-Mg alloy laminated plate were conducted, and the stress-cycle (S-N) curve with a survival rate of 97.7% was obtained. The fatigue failure mode was analyzed, and its fracture mechanism of the laminated plates was determined. Furthmore, the mechanical behavior of Al/Al-Mg alloy laminated plate was investigated using the finite element analysis (FEA). Based on the load spectrum of 100 t tank car described in the Association of American Railroads (AAR) standard, in conjunction with the S-N curve of the base materials and the lap-welded joints, the fatigue life of the 70 t tank body was calculated based on the Miner’s linear accumulative damage theory. The results showed that the 70 t tank car constructed with such materials can meet the safety requirements of operating for 2.5 million km.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Material Properties and Failure Mechanisms · Material Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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