NDLI: Study on mode-I fracture toughness of composite laminates with curved plies applied by automated fiber placement

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Study on mode-I fracture toughness of composite laminates with curved plies applied by automated fiber placement

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Zhenkun Lei Hao Jiang Tiancheng Gao Ruixiang Bai Cheng Yan Chen Liu Dili Dong Jianyu Di
Abstract	Interlaminar fracture toughness is an important parameter to characterize the delamination performance of carbon fiber-reinforced epoxy laminates. In this study, the mode-I fracture toughness of interlaminar interfaces with different local ply angles were studied by experiments and numerical simulations. A set of double cantilever beam specimens of T800 carbon fiber/EH104 epoxy were prepared according to the ASTM-D5528–01 standard, where four specimens had straight ply interfaces (0°//0°, 15°//−15°, 30°//−30°, and 45°//−45°) and two specimens had curved ply interfaces (curvature radius: 300 and 500 mm). The mode-I fracture toughness was characterized using a data reduction scheme based on the modified beam theory. The results revealed that the mode-I fracture toughness values for the specimens with a curved ply interface were significantly higher than those for specimens with a straight ply interface.
Related Links	http://www.sciencedirect.com/science/article/pii/S0264127520304974
ISSN	18734197
DOI	10.1016/j.matdes.2020.108963
Journal	Materials & Design
Volume Number	195
Language	English
Publisher	Elsevier
Publisher Date	2020-01-01
Publisher Place	United Kingdom
Access Restriction	Open
Subject Keyword	Materials of Engineering and Construction. Mechanics of Materials Mode-i Fracture Toughness Double Cantilever Beam Test Trilinear Traction-separation Law Automated Fiber Placement
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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