Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission

被引：72

作者：

Saeedifar, Milad ^{[1
]}

Fotouhi, Mohamad ^{[1
]}

Najafabadi, Mehdi Ahmadi ^{[1
]}

Toudeshky, Hossein Hosseini ^{[2
]}

Minak, Giangiacomo ^{[3
]}

机构：

[1] Amirkabir Univ Technol, Nondestruct Testing Lab, Dept Mech Engn, Tehran, Iran

[2] Amirkabir Univ Technol, Dept Aerosp Engn, Tehran, Iran

[3] Univ Bologna, Alma Mater Studiorum, DIN Dept, I-47121 Forli, Italy

来源：

COMPOSITES PART B-ENGINEERING | 2016年 / 85卷

关键词：

Glass fibres; Delamination; Fracture toughness; Acoustic emission; FATIGUE-CRACK GROWTH; UNIDIRECTIONAL GLASS/EPOXY COMPOSITES; FRACTURE-TOUGHNESS; DAMAGE CLASSIFICATION; MODE-I; MECHANISMS; INITIATION; EVALUATE; IMPACT;

D O I：

10.1016/j.compositesb.2015.09.037

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The main objective of this study is to determine the crack tip position during propagation of mode I delamination and also to evaluate interlaminar fracture toughness (G(IC)) in glass/epoxy composite specimens. The crack tip location was identified using two methods: a) localization of the AE signal source and b) the cumulative AE energy. Interlaminar fracture toughness of the specimens was also determined using the ASTM standard methods and the AE-based methods. The AE-based methods results were in a close agreement with the results of ASTM standard. It was found that the novel AE-based methods are more applicable than conventional methods for characterization of the delamination. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：113 / 122

页数：10

共 42 条

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