Contrast Studies of Compression after Impact of Two Material Systems

摘要：

The compression after impact (CAI) test has become a key experiment to gather damage tolerance performance data during the design or certification phase of composites. As two important material systems, it is necessary to study the CAI performance of CCF300/BA9916 and CCF300/BA9916-Ⅱand the function of toughened resin. The results of impact event show that indentation of the latter is even deeper than the former at the same impact energy which is less than 20J,but indentation depth of the latter is just approximate to half of the former when the impact energy is greater than 20J. The results of compression show that the residual compressive strength of theCCF300/BA9916-Ⅱ exceeds about 20％ of that of the CCF300/BA9916 when the impact energy or indentation depth of the specimens is nearly the same. The normalized compressive strength of the latter is still greater than that of the former. The paper compared two resin matrix (BA9916 and BA9916-Ⅱ) and found that toughened resin matrix BA9916-Ⅱ can increase impact resistance and damage tolerance.

关键词： composite laminates compression after impact residual compressive strength toughened resin normalized compressive strength

作者: Cheng Yongming Jiao Guiqiong Wang bo Pan Wenge

作者单位: Department of Engineering Mechanics, Northwestern Polytechnical University,Xian,710129 China Department of Engineering Mechanics, Northwestern Polytechnical University, Xian, 710129 China Department of Engineering Mechanics,Northwestern Polytechnical University, Xian, 710129 China

会议类型: 国际会议

会议名称: 2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)

会议地点: 西安

会议语种:英文

页码: 869-872

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）