Mode Ⅰ Fracture Toughness Behaviors of 3D Angle-Interlock Woven Composites
Mode Ⅰ interlaminar fracture toughness and related toughening mechanisms of three dimensional angle interlock composite were studied.Quasi static Mode Ⅰ fracture tests were conducted using double cantilever beam specimen on an Instron tensile testing machine.Fracture process was recorded to reveal the effects of 3D angle-interlock woven fabric architecture on mode Ⅰ interlaminar toughness.Critical strain energy release rates (GIc) were computed by Area method, and presented it versus delamination length (R-curve).Fractographic study was carried out for confirmation of the mechanisms identified by fracture process.From fracture photographs, it was observed that primary structure failure occurred at resin-fiber interface, while other contributing toughening mechanisms were matrix cracking, matrix breakage, yams bridging and pull out.R-curve showed a large increase in interlaminar fracture toughness with increase in delamination length.It was found that layer by layer reinforced composite structure was favorable to resist fracture to a large extent as confirmed by the fracture process and GIc.
Fracture toughness Strain energy release rate Mode Ⅰ Quasi static Double cantilever beam (DCB)
Amna Siddique Hailou Wang Anvarjon Nishonov Baozhong Sun Bohong Gu
College of Textiles, Donghua University, Shanghai 201620, China
国际会议
2018 Sino-Africa International Symposium on Textiles and Apparel (SAISTA2018)(2018中非纺织服装国际论坛)
巴赫达尔
英文
30-34
2018-09-15（万方平台首次上网日期，不代表论文的发表时间）