A DIC-based study of in-plane mechanical response and fracture of orthotropic carbon fiber reinforced composite

被引：67

作者：

Koohbor, Behrad ^{[1
]}

Mallon, Silas ^{[1
]}

Kidane, Addis ^{[1
]}

Sutton, Michael A. ^{[1
]}

机构：

[1] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA

来源：

COMPOSITES PART B-ENGINEERING | 2014年 / 66卷

关键词：

Carbon fiber; Fracture; Mechanical properties; Mechanical testing; Digital image correlation (DIC); STRESS INTENSITY FACTOR; INTERLAMINAR FRACTURE; CRACK-PROPAGATION; DYNAMIC FRACTURE; MODE-I; FIELDS;

D O I：

10.1016/j.compositesb.2014.05.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The in-plane elastic properties and quasi-static fracture response of an orthotropically woven carbon fiber reinforced composite are investigated using 3D digital image correlation. The elastic properties are determined as a function of fiber orientation, and the effect of fiber angles on the crack extension direction is investigated. The modified maximum hoop stress criterion is used to predict the crack extension angle of the examined material. The predicted angles are in very good agreement with those found experimentally. Optical observations and local strain data from the quasi-static fracture studies reveal that crack initiation occurs well before the maximum far-field load is reached. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：388 / 399

页数：12

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