%0 Journal Article
%T An Experimental Study on Three-Point Bending of Aluminum Alloy Foam-Filled Cylindrical Aluminum alloy Pipe<br>泡沫铝合金填充圆管三点弯曲实验研究
%A XIE Zhong-you
%A YU Ji-lin
%A LI Jian-rong
%A <br>谢中友
%A 虞吉林
%A 李剑荣
%J 实验力学
%D 2007
%I 
%X In this paper,three-point bending behavior of aluminum alloy foam-filled cylindrical aluminum alloy pipe with three different pipe thicknesses and two different spans was investigated experimentally.Three kinds of deformation modes,namely indentation,indentation-bending and tensile fracture of underneath pipe skin,were observed.Load-displacement curves of hollow and foam-filled pipes were obtained and compared with each other.It is found that the load-bearing capacity increases with the increase of the foam density but the failure strain decreases.The relative increase of the load-bearing capacity increases with the decrease of the pipe-wall thickness and the increase of the span.The mechanism of foam filler in enhancing the load-bearing capacity was also analyzed.It is found that foam filler will significantly reduce the indentation and the consequent degradation of the flexural rigidity of the cross-section,thus increase the load-bearing capacity.
%K aluminum foam
%K cylindrical pipe
%K three-point bending<br>泡沫铝
%K 圆管
%K 三点弯曲
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=49067A0A0D864088C06A84AACB51A5B2&aid=7508494B4EF1B247&yid=A732AF04DDA03BB3&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=DBF54A8E2A721A6D&eid=4DB1E72614E68564&journal_id=1001-4888&journal_name=实验力学&referenced_num=1&reference_num=13