%0 Journal Article
%T Research for the influence of thickness on the energy distribution of splitting and curling circular steel tube<br>壁厚对金属圆管撕裂卷曲耗能影响的研究
%A Wang Rui
%A Qin Qinghua
%A Cheng Guoqiang
%A Zhang Shanyuan
%A <br>王蕊
%A 秦庆华
%A 程国强
%A 张善元
%J 力学学报
%D 2005
%I 
%X This paper reports the experimental studies and theoretical analyses on axial splitting and curling of A3 steel tubes with different thickness on a conical die. Seven groups of metal circular tubes, with diameter D = 54.4mm, are used as the text specimens. The force-compression curves and deformation modes of specimens are recorded. Three energy dissipation mechanisms are involved: tearing energy, plastic bending energy and friction energy during the specimens deformation. Theoretical analyses find that the influence of tube-thickness on the ratios of tearing energy and the plastic energy to the total energy is considerable and on the ratio of frictional energy to the total energy is slight.
%K circular steel tube
%K plastic curl
%K flexible splitting
%K friction consume
%K absorbing-energy equipment<br>金属圆管
%K 塑性卷曲
%K 韧性撕裂
%K 摩擦耗能
%K 吸能装置
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=32452CDA8E0DF03D&yid=2DD7160C83D0ACED&vid=42425781F0B1C26E&iid=0B39A22176CE99FB&sid=5B5B75F4854B8331&eid=FBA00558C57D9C11&journal_id=0459-1879&journal_name=力学学报&referenced_num=1&reference_num=5