%0 Journal Article
%T RESEARCH ON THE INTERNAL FRICTION OF FOAMED ALUMINIUM IN ACOUSTIC FREQUENCY<br>泡沫铝的声频内耗
%A LIU Changsong
%A ZHU Zhengang
%A HAN Fusheng
%A <br>刘长松
%A 朱震刚
%A 韩福生
%J 材料研究学报
%D 1997
%I 
%X The internal friction of foamed aluminium in acoustic frequency has been studied. It shows that the internal friction of foamed aluminium enhanced in comparison with that of massive aluminium, the internal friction decreased when frequency was raised and the internal friction has normal amplitude effect.The relation of the internal friction with frequency, porosity and pore size were derived from the equation of plane waves in elastic material with voids. This is consistent with experimental results.
%K foamed aluminium internal friction volume fraction<br>体积分数
%K 泡沫铝
%K 声频内耗
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=2DC56752D3A45528&yid=5370399DC954B911&vid=708DD6B15D2464E8&iid=0B39A22176CE99FB&sid=D59111839E7C8BDF&eid=0B4F496D54044D86&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=3&reference_num=1