Optimized toughness of short fiber-based composites: The effect of fiber diameter

被引：15
|
作者：
Wagner, H. Daniel [1 ]
Lustiger, Arnold [2 ]
机构：
[1] Weizmann Inst Sci, Dept Mat & Interfaces, IL-76100 Rehovot, Israel
[2] ExxonMobil Res & Engn Co, Annandale, NJ 08801 USA
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2009年 / 69卷 / 7-8期
关键词：
Short-fiber composites; Fracture toughness; Mechanical properties; Modeling; REINFORCED THERMOPLASTICS; FRACTURE WORK;
D O I：
10.1016/j.compscitech.2009.03.008
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The effect of fiber diameter change on the toughness of short fiber polymer-based composites is studied by assuming that the main energy absorption upon fracture is the fiber pull-out mechanism. An expression is derived for a characteristic fiber length, l*, distinct from the critical length, above which an increase in fiber diameter always yields an increase in composite toughness. Experimental validation is provided through impact testing of composites made of short polyethylene terephthalate fibers in a polypropylene matrix. (c) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1323 / 1325
页数：3
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