%0 Journal Article
%T Ultrasonic Approach of Rayleigh Pitch-catch Contact Ultrasound Waves on CFRP Laminated Composites<br>
%A In-Young Yang
%A Kwang-Hee Im
%A Uk Heo
%A David K Hsu
%A Je-Woong Park
%A Hak-Joon Kim
%A Sung-Jin Song
%A <br>
%J 材料科学技术学报
%D 2008
%I 
%X CFRP (carbon fiber reinforced plastics) composite materials have wide applicability because of their inherent design flexibility and improved material properties. However, impacted composite structures have 50%-75% less strength than undamaged structures. In this work, a CFRP composite material was nondestructively characterized in order to ensure product quality and structural integrity of CFRP and one-sided pitch-catch technique was developed to measure impacted-damaged area by using an automated-data acquisition system in an immersion tank. A pitch-catch signal was found to be more sensitive than normal incidence backwall echo of longitudinal wave under defect conditions in the composite.
%K Impact damages
%K C-scanner
%K Carbon fiber reinforced plastics (CFRP)
%K Pitch- catch mode<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=7DC75FB0046198CF84BA0953E56CCD46&yid=67289AFF6305E306&vid=B91E8C6D6FE990DB&iid=38B194292C032A66&sid=8CCD0401CC9AE432&eid=0493D643315CD829&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=6