%0 Journal Article
%T An Experimental Study on Dynamic Response for Delaminated Composite Beams Subjected to Axial Impact<br>含脱层损伤复合材料层合梁冲击动力响应实验研究
%A CAI Zhong-yun
%A TANG Wen-yong
%A ZHAO Yong-gang
%A HAN Zhi-jun
%A LIANG Wei-ming
%A ZHANG Sheng-kun
%A <br>蔡忠云
%A 唐文勇
%A 赵永刚
%A 韩志军
%A 梁卫民
%A 张圣坤
%J 实验力学
%D 2007
%I 
%X An experimental study on dynamic pulse response behavior of fiber reinforced plastic(FRP) beams with delaminations subjected to axial impact by moving mass is presented.The specimens were manufactured by unidirectional E-glass fiber fabric and epoxy resin with , and ply sequences and different initial imperfections.The delamination of beam was simulated by copper foils between designed plies.The data of bullet velocities and time history curves of strain were recorded respectively by laser setup,high dynamic strain indicator and TDS420A oscilloscope.The experimental results show that the ply sequences play a significant role in laminated composite material properties and delaminations have a significantly effect on dynamic pulse response of laminated beams.Moreover the initial imperfection is another important factor that can't be neglected.
%K composite structure
%K laminated beam
%K delamination
%K dynamic response
%K impact<br>复合材料
%K 层合梁
%K 动力响应
%K 脱层
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=49067A0A0D864088C06A84AACB51A5B2&aid=07A371585DFCF7A2&yid=A732AF04DDA03BB3&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=480C51B1F0CE0AB6&eid=7F5DDA4924737DF5&journal_id=1001-4888&journal_name=实验力学&referenced_num=0&reference_num=10