Interlaminar shear strain measurement on angle-ply laminate free edge using digital image correlation

被引：26
|
作者：
Lecomte-Grosbras, Pauline [1 ,2 ]
Paluch, Bernard [1 ]
Brieu, Mathias [2 ]
De Saxce, Gery [3 ]
Sabatier, Laurent [4 ]
机构：
[1] ONERA DADS, 5 Blvd Paul Painleve, F-59045 Lille, France
[2] Ecole Cent Lille, Lab Mecan Lille, F-59655 Villeneuve Dascq, France
[3] Univ Sci & Technol Lille, Lab Mecan Lille, F-59655 Villeneuve Dascq, France
[4] CNRS, Lab Mecan Lille, F-59655 Villeneuve Dascq, France
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2009年 / 40卷 / 12期
关键词：
Carbon fibre; Laminates; Microstructure; Digital image correlation; COMPOSITE; DELAMINATION; SPECIMENS; STRESSES; FIELDS; ONSET; HOLE;
D O I：
10.1016/j.compositesa.2009.07.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Because only coarse polishing is required in order for Digital Image Correlation (DIC) to be used, such a technique has been used to study interlaminar shear strain on the free edges of carbon/epoxy laminates. Pure LID and quasi LID have been considered. The measurement uncertainties are small when compared to measured fields. The correlation parameters of DIC have been optimized to highlight the strain gradients. DIC results for pure-LID samples show high interlaminar strain gradients with a non-linear behaviour and local damage close to inter-ply interfaces. Measurements of quasi-LID, samples highlight the microstructure influence on the spatial repartition of free edge strain gradients. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1911 / 1920
页数：10
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