爆炸与冲击2018，Vol.38Issue(4)：841-846,6.DOI:10.11883/bzycj-2016-0335
轴向冲击下C型冷弯卷边槽钢构件的动力响应
Dynamic response of cold-formed thin-wall steel lipped channel under axial impact
摘要
Abstract
In our study, we established a finite element model using Abaqus, a commercially available software, to simulate the dynamic response of a cold-formed thin-wall steel lipped channel under axial compact, and verified its reliability by the highly consistent data and residual deformation obtained both from the finite element simulation and a drop hammer test. Based on the finite element model, we analyzed the axial displacement histories of the web, the flange and the lip, and the changing process of the web's lateral deflection under different impact energies. The results indicate that the axial displacement and the speed of the lip are significantly greater than those of the web and the flange during the loading process of higher impact energy, while the flange exerts an obvious constraint on the lip under lower impact energy. The dynamic critical load of the cold-formed steel channel under axial impact increases as the impact velocity goes up.关键词
钢结构/动力响应/落锤实验/轴向冲击Key words
steel structure/dynamic response/drop hammer test/axial impact分类
数理科学引用本文复制引用
张旭,孙国军,黄栩浩,叶文华,朱珏..轴向冲击下C型冷弯卷边槽钢构件的动力响应[J].爆炸与冲击,2018,38(4):841-846,6.基金项目
国家自然科学基金项目(11572162) （11572162）
浙江省自然科学基金项目(LY13A020007) （LY13A020007）
第47批国家教育部留学回国人员基金项目 （）
宁波大学王宽诚基金项目 （）
