鉄道車両用アルミ合金製衝撃吸収構造を対象にした準静的圧壊実験と数値解析による基礎検討

概要

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This paper describes the result of basic study for development of energy absorption structure with pressure bulkhead for railway vehicle made of aluminium alloy. Under U.K. standard, quasistatic compression test using full size specimen and finite element analysis was carried out. In the experiment, the structure was fully compressed up to collapse length of 445mm and the absorbed energy 1.11MJ. Maximum reaction force is almost less than 3000kN with some spiked loads that exceeds 3000kN. In the simulation, four nodes shell element was used for modelling and explicit finite element analysis method was employed. And the simulation results have good agreement with the experiment results in collapse length and load relationship. As a result, we have confirmed that the structure for the specimen can meet U.K. standard and our simulation method can predict collapse characteristics with practically high accuracy.
社団法人日本機械学会の論文
2008-01-25