Mode III interlaminar fracture of carbon/epoxy laminates using the Six-Point Edge Crack Torsion (6ECT)

被引：22

作者：

de Morais, A. B. ^{[1
]}

Pereira, A. B. ^{[1
]}

de Moura, M. F. S. F. ^{[2
]}

机构：

[1] Univ Aveiro, Dept Mech Engn, P-3810193 Aveiro, Portugal

[2] Univ Porto, Fac Engn, Dept Mech Engn, P-4200465 Oporto, Portugal

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2011年 / 42卷 / 11期

关键词：

Polymer-matrix composites (PMCs); Delamination; Fracture toughness; Mechanical testing; ECT TEST; COMPOSITE-MATERIALS; TOUGHNESS;

D O I：

10.1016/j.compositesa.2011.08.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The recently proposed Six-Point Edge Crack Torsion (6ECT) test was used to evaluate the mode Ill interlaminar fracture of carbon/epoxy laminates. Plate specimens with starter delaminations in 0/0, 0/90 and 0/45 interfaces were tested. Data reduction was performed with an effective crack scheme validated in a previous numerical study. The tests allowed the evaluation of fairly unambiguous initiation Chic values and of subsequent R-curves. Examinations of specimen cross-section showed considerable lengths of pure interlaminar propagation in specimens with starter delaminations in 0/90 and 0/45 interfaces. The latter specimens had the lowest initiation G(IIIC) values. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1793 / 1799

页数：7

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