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Comparison and Evaluation of Load Test Methods for Aluminum Car Body  

서승일 (한국철도기술연구원)
박춘수 (한국철도기술연구)
신병천 (한국기계연구원)
Publication Information
Journal of the Korean Society for Railway / v.7, no.1, 2004 , pp. 32-36 More about this Journal
Abstract
Aluminum carbody for rolling stocks is light and perfectly recycled, but includes severe defects which are very dangerous to fatigue strength. Static load test has been performed up to date to assess structural safety of the carbody. However, static load test is not sufficient to evaluate fatigue strength of the carbody, because fatigue failure is caused by dynamic load. In this study, the established load test methods for carbody are described and the characteristics of the methods are discussed. Also, a testing method to simulate dynamic loading condition is proposed for evaluation of fatigue strength of the carbody. The results by the proposed testing method are compared with the results by the static load test and new findings are discussed.
Keywords
Large Scale Load Test; Aluminum Carbody; Dynamic Load Test; Fatigue Strength; Alternating Stress;
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