Effectiveness of Stitching in Damage Tolerance of Laminated Composites

摘要：

This paper investigates the effectiveness of using through-thickness stitching in suppressing impactinduced delamination growth in laminated composites. Low-velocity impact tests are conducted on unstitched and stitched specimens with varying stitch density and stitch thread thickness. Results show that stitching effectively bridges and arrests delamination crack, and reduces delamination growth up to 40％. It is also revealed that increasing stitch density is more effective (23％ reduction) in minimising delamination area than increasing stitch thread thickness (8％ reduction). Impact resistance mechanisms namely crack arresting and crack bridging are presented and discussed.

关键词： Stitched Composites Low-Velocity Impact Delamination Stitch Density

作者: K.T. Tan N. Watanabe H. Hoshi Y. Iwahori

作者单位: Tokyo Metropolitan University, Department of Aerospace Engineering, Japan Japan Aerospace Exploration Agency, Advanced Composite Technology Center, Japan

会议类型: 国际会议

会议名称: The Ninth China-Japan Joint Conference on Composite Materials(第九届中日复合材料学术会议 CJJCC-9)

会议地点: 呼和浩特

会议语种:英文

页码: 29-32

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）