期刊
ENGINEERING FRACTURE MECHANICS
卷 173, 期 -, 页码 107-117出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2016.12.022
关键词
Composites; R-curves; Delamination; Digital Image Correlation
类别
资金
- Defence Materials Technology Centre (DMTC)
- Defence Science and Technology Group (DSTG)
- Australian Government's Defence Future Capability Technology Centres Programme
- Endeavour Postgraduate Fellowship-Australian Government
- Australian Government
The Double Cantilever Beam (DCB) test is the most widely used measurement technique for Mode I interlaminar fracture toughness of composite structures. However, the traditional testing methodology is based on the optical tracking of hand-marked scales on the specimen edge, which reduces its accuracy and makes it particularly dependent on human skills. Here, we present a novel Top Surface Analysis (TSA) method which overcomes these difficulties by analysing the top surface of DCB test samples via Digital Image Correlation. The automated measuring and data analysis procedure minimise the influence of human errors. This approach is able to simultaneously measure crack length and crack tip opening displacement. In order to verify the accuracy of the method, a comparison between TSA and conventional side-view evaluation methods was carried out on carbon and glass fibre reinforced composite laminates. The proposed method proves to be a promising tool to automate crack length measurements in arbitrary laminated structures and to provide more accurate fracture toughness properties for the prediction of damage tolerance in composite structures. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据