In-situ X-ray computed tomography of composites subjected to fatigue loading

被引：12
|
作者：
Wagner, Peter [1 ]
Schwarzhaupt, Oliver [2 ]
May, Michael [3 ]
机构：
[1] BMW Grp, Knonstr 147, D-80937 Munich, Germany
[2] Fraunhofer Inst Struct Durabil & Syst Reliabil, LBF, Bartingstr 47, D-64289 Darmstadt, Germany
[3] Fraunhofer Inst High Speed Dynam, EMI, Ernst Zermelo Str 4, D-79104 Freiburg, Germany
来源：
MATERIALS LETTERS | 2019年 / 236卷
关键词：
Composite materials; Polymeric composites; Deformation and fracture; Fatigue; X-ray techniques; Matrix cracking; DAMAGE; INITIATION; EVOLUTION;
D O I：
10.1016/j.matlet.2018.10.078
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In-situ X-ray computed tomography and online stiffness monitoring were used to study damage initiation and propagation in multi-directional carbon fiber reinforced composite coupon subjected to tension-tension fatigue loading. It was found that a resolution of the CT system of 8 mu m was sufficient to capture matrix crack inside the specimen. A clear correlation was found between the increasing number of matrix cracks and the observed stiffness degradation of the composite specimen. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：128 / 130
页数：3
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