An acoustic emission study of flax fiber-reinforced polypropylene composites

被引：20

作者：

Czigany, T ^{[1
]}

机构：

[1] Budapest Univ Technol & Econ, Fac Mech Engn, Dept Polymer Engn & Text Technol, H-1111 Budapest, Hungary

来源：

JOURNAL OF COMPOSITE MATERIALS | 2004年 / 38卷 / 09期

关键词：

flax fiber; polypropylene composites; acoustic emission; fracture toughness; damage zone;

D O I：

10.1177/0021998304042481

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Sensitivity to crack propagation in flax fiber-reinforced polypropylene (PP) composites has been examined on SEN-T specimens. The sound waves that arise due to loading have been investigated with the acoustic emission method. Linear functional relationship has been revealed between the number of acoustic events that occur during loading and the fracture toughness. It has also been observed that increase in moisture content influences the mechanical properties unfavorably because water entering the fiber-matrix interface during swelling reduces the interaction. The size of the damage zone has been determined, and it proved to be smaller than in case of glass and carbon fiber-reinforced systems.

引用

页码：769 / 778

页数：10

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