Energy-Absorbing Characteristics of the Stiffened Thin-Walled Tubes Subjected to Lateral Crushing

摘要：

Different stiffen methods were adopted to increase the lateral energy absorbing capacity of the popularly used hat sections. Lateral energyabsorption performance of the stiffened thin-walled tubes was studied numerically via non-linear finite element code Is-dyna. First non-stiffened hat section subjected to quasi-static lateral crushing was simulated, then structures with different stiffened parameters were calculated, finally energy absorption capacity of these structures were compared. Results showed that, for the appropriate designed stiffened tube, the internal energy absorbed was increased significantly compared to the non-stiffened;the mass specific energy absorption capacity increased more than 40％. The improvement of the bending crashworthiness was mainly due to the contact of opposite faces of the stiffened structures.

关键词： stiffen tube thin-walled tubes lateral compression energy-absorbing capacity Ls-dyna

作者: Wang Qingchun Niu Haolong Wang Yuxin Wang Guoquan

作者单位: School of Technology, Beijing Forestry University, Beijing, China Department of Mechanical Electron Engineering, Beijing Information Scientific and Technical Universi

会议类型: 国际会议

会议名称: The Third International Conference on Modelling and Simulation(第三届国际建模、计算、仿真、优化及其应用学术会议 ICMS 2010)

会议地点: 无锡

会议语种:英文

页码: 156-162

在线出版日期: 2010-06-04（万方平台首次上网日期，不代表论文的发表时间）