Fatigue delamination behaviour of unidirectional carbon fibre/epoxy laminates reinforced by Z-Fiber® pinning

被引：65

作者：

Cartie, Denis D. R. ^{[1
]}

Laffaille, Jean-Martin ^{[1
]}

Partridge, Ivana K. ^{[1
]}

Brunner, Andreas J. ^{[2
]}

机构：

[1] Cranfield Univ, Sch Appl Sci, Composites Ctr, Cranfield MK43 0AL, Beds, England

[2] Swiss Fed Labs Mat Testing & Res, CH-8600 Dubendorf, Switzerland

来源：

ENGINEERING FRACTURE MECHANICS | 2009年 / 76卷 / 18期

基金：

英国工程与自然科学研究理事会;

关键词：

Composites; Delamination; Fatigue crack growth; Z-Fiber (R) pinning; LOW-VELOCITY IMPACT; FAILURE MECHANISMS; CYCLIC TENSION; JOINTS; PERFORMANCE; COMPOSITES; SIMULATION; DAMAGE;

D O I：

10.1016/j.engfracmech.2009.07.018

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Z-Pin reinforced carbon-fibre epoxy laminates were tested under Mode I and Mode II conditions, both quasi-statically and in fatigue. Test procedures were adapted from existing standard or pre-standard tests. Samples containing 2% and 4% areal densities of carbon-fibre Z-pins (0.28 mm diameter) were compared with unpinned laminates. Quasi-static tests under displacement control yielded a dramatic increase of the apparent delamination resistance. Specimens with 2% pin density failed in Mode I at loads 170 N, equivalent to an apparent G(IC) of 2 kJ/m(2). Fatigue testing under load control showed that the presence of the through-thickness reinforcement slowed down fatigue delamination propagation. (C) 2009 Published by Elsevier Ltd.

引用

页码：2834 / 2845

页数：12

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