Effects of Slit Patterns on the Tensile Properties of Unidirectionally Arrayed Chopped Strands Composites

摘要：

　　This study investigates the tensile properties of UACS (unidirectional arrayed chopped strands) laminates with different slit patterns.UACS composite is a kind of short fiber reinforced polymer by introducing slits into prepregs before the fabrication of laminates.Existing UACS composites have superior flowability but relatively low tensile strength compared to conventional CFRP (carbon fiber reinforced polymer).Consequently,many efforts have been made to improve the strength of UACS composites.In this study,two new discontinuous slit patterns,staggered pattern and bi-angled pattern,have been developed.Tensile tests reveal that two new UACS laminates with staggered and bi-angled slit patterns have higher strength and higher stiffness than existing UACS laminates with continuous slits.Discontinuity of slits plays an important role in inhibiting the development of delamination.Different slit patterns show different failure modes.

关键词： Uacs Slit Tensile Test Failure Mode

作者: H.Li W.X.Wang Y.Takao T.Matsubara

作者单位: Department of Aeronautics and Astronautics,Engineering School,Kyushu University,Motooka Nishiku Fuku Research Institute for Applied Mechanics,Kyushu University,Kasuga,Fukuoka 816-8580,Japan

会议类型: 国际会议

会议名称: The tenth China-Japan joint conference on Composite Materials (第10届中日复合材料学术会议(CJJCC-10))

会议地点: 成都

会议语种:英文

页码: 247-250

在线出版日期: 2012-09-08（万方平台首次上网日期，不代表论文的发表时间）