New designs of unidirectionally arrayed chopped strands by introducing discontinuous angled slits into prepreg

被引：30
作者：
Li, Hang [1 ]
Wang, Wen-Xue [2 ]
Takao, Yoshihiro [2 ]
Matsubara, Terutake [2 ]
机构：
[1] Kyushu Univ, Sch Engn, Dept Aeronaut & Astronaut, Motooka Nishi Ku, Fukuoka 8190395, Japan
[2] Kyushu Univ, Appl Mech Res Inst, Kasuga, Fukuoka 8168580, Japan
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2013年 / 45卷
关键词：
Discontinuous reinforcement; Laminates; Strength; Mechanical testing; SMC; BEHAVIOR; STRENGTH;
D O I：
10.1016/j.compositesa.2012.09.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
New designs of unidirectionally arrayed chopped strands (UACSs) are proposed to improve existing UACS laminates with continuous angled slits by introducing discontinuous angled slits into a unidirectional prepreg. Two slit patterns of staggered angled slits and bi-angled slits are designed. A paper cutter is employed to introduce slits into the prepreg. Quasi-isotropic UACS laminates with new slit patterns and existing continuous angled slits together with the conventional laminate without slits are fabricated for tensile tests. Hybrid laminates [90/0/90] with two unidirectional glass-fiber/epoxy plies and one UACS ply are fabricated for flowability tests. Experimental results reveal that newly designed UACS laminates possess higher strength and better flowability than existing UACS laminate. (c) 2012 Elsevier Ltd. All rights reserved.
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收藏
页码：127 / 133
页数：7
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