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Energy Absorbing Control Characteristic of Al Thin-walled Tubes  

Yang, Yong-Jun (조선대학교 첨단부품소재공학과)
Yang, In-Young (조선대학교 기계설계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.17, no.1, 2008 , pp. 86-91 More about this Journal
Abstract
The structural members must be designed to control characteristics of energy absorption for protecting passengers in a car accident. Study on collapse characteristics of structural member is currently conducted in parallel with other studies on effective energy absorption capacity of structural members with diverse cross-sectional shapes and various materials. This study concerns the crashworthiness of the widely used vehicle structural members, square thin-walled tubes, which are excellent in the point of the energy absorption capacity. The absorbed energy, mean collapse load and deformation mode were analyzed for side member which absorbs most of the collision energy. To predict and control the energy absorption, controller is designed in consideration of its influence on height, thickness and width ration in this study. The absorbed energy and mean collapse load of square tubes were increased by $15{\sim}20%$ in using the controller, and energy absorbing capability of the specimen was slightly changed by change of the high controller's height.
Keywords
Collapse Load; Al Thin-walled tubes; Energy Absorption Capacity; Control Characteristics of Energy Absorption; Controller of Energy Absorption;
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