Micro-computed tomography analysis of damage in notched composite laminates under multi-axial fatigue

被引：28
作者：
Qiao, Yao [1 ]
Salviato, Marco [1 ]
机构：
[1] Univ Washington, William E Boeing Dept Aeronaut & Astronaut, Guggenheim Hall, Seattle, WA 98195 USA
来源：
COMPOSITES PART B-ENGINEERING | 2020年 / 187卷
基金：
美国国家科学基金会;
关键词：
Fatigue; Fracture; DIC; mu-CT; Damage mechanism; FIBER-REINFORCED COMPOSITES; DIGITAL IMAGE CORRELATION; COHESIVE CRACK ANALYSIS; INFRARED THERMOGRAPHY; FAILURE MECHANISMS; CIRCULAR-HOLE; GRP COMPOSITE; CFRP; STRENGTH; BEHAVIOR;
D O I：
10.1016/j.compositesb.2020.107789
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The broad application of polymer composites in engineering demands the deep understanding of the main damage mechanisms under realistic loading conditions and the development of proper physics-based models. Towards this goal, this study presents a comprehensive characterization of the main damage mechanisms in a selection of notched composite structures under multiaxial fatigue loading. Thanks to a synergistic combination of X-ray micro-computed tomography (mu-CT) and Digital Image Correlation (DIC), the main failure modes are identified while the crack volume associated to each mechanism is characterized. This study provides unprecedented quantitative data for the development and validation of computational models to capture the fatigue behavior of polymer composite structures.
引用
收藏
页数：15
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