Compression testing of continuous fiber reinforced polymer composites with out-of-plane fiber waviness and circular notches

被引：39

作者：

Elhajjar, Rani F. ^{[1
]}

Shams, Seyedmohammad S. ^{[1
]}

机构：

[1] Univ Wisconsin, Coll Engn & Appl Sci, Dept Civil Engn & Mech, Milwaukee, WI 53211 USA

来源：

POLYMER TESTING | 2014年 / 35卷

关键词：

Compression testing; Damage mechanics; Fiber waviness; Effects of defects; Carbon fibers; OPEN HOLE; STRENGTH; BEHAVIOR;

D O I：

10.1016/j.polymertesting.2014.02.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We investigated the face-stabilized Open-Hole Compression (OHC) test method for evaluating the effects of fiber waviness on the compression strength of continuous carbon fiber reinforced polymer composites. Temporal evaluations of the load-deformation response, acoustic emissions and optical microscopy are used to understand the failure modes and damage progression in the OHC specimen. The failure modes observed are structurally correlated to matrix failure and kink zone formation leading to fiber fracture. The results show how the resin pocket plays a more critical role than the layup in influencing the initiation of damage in the composite specimens. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：45 / 55

页数：11

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