Cyclic Compression Behavior of Three-Dimensional Woven Spacer Kevlar/Polyimide Composites After Flat Compression

摘要：

　　In this work,a novel three-dimensional woven spacer aramid fabric reinforced polyimide composite material was designed and manufactured.And then the flat compression and the cyclic compression behavior after flat compression failure have been studied.The results show that the composite material proposed here has excellent compressive performance,with the compressive strength of 5.3 MPa.Interestingly,the sample could restore to 80%of the original height when the load was removed after the flat compression test.The test was repeated 100 times under the condition of a strain rate of 22.5%,and the results show that the load recovery rate can still reach 93%after 100 cycles of compression.In the cyclic compression test with the constant load at 3 000 N for 100-cyclet,the results show that the strain increase rate is only 4%.The above results show that the sample damaged by the flat compression test of the composite material still has a certain degree of compressive strength and excellent resilience,which will have application potential in the field of compressive and cushioning materials.

关键词： 3D Kevlar fabric Polyimide Spacer composites Cyclic compression behavior

作者: ZHENG Liangang XU Fujun QIU Yiping

作者单位: Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China;Department of Technical Textiles,College of Textiles,Donghua University,Shanghai 201620,China

会议类型: 国际会议

会议名称: 2021 Sino-Africa International Symposium on Textiles and Apparel (SAISTA2021)(2021中非纺织服装国际论坛)

会议地点: 线上

会议语种:英文

页码: 354-357

在线出版日期: 2021-11-05（万方平台首次上网日期，不代表论文的发表时间）