<abstract xmlns="http://www.w3.org/1999/xhtml">

This research aimed to explore the influence of fiber laying angles on the bending resistance properties of carbon fiber/foam sandwich structural composites. Four kinds of composites with the following laying angles: [0°]8, [0°/45°/90°/−45°]s, [0°/90°]4 and [45°/−45°]4 were prepared and tested in three-point bending experiments. The results obtained showed that the bending resistance performance was the best when the laying angle was [0°]8, while it was the worst when the laying angle was [45°/−45°]4. Besides, it was found that the tensile performance was the best when the fibers were arranged in the 0° direction when the strength utilisation rate was the highest. In addition, by observing the failure morphologies of the composites, the delamination and foam cracking were found in the four groups of composites. In contrast, the phenomenon of significant fracture was found on composites with a laying angle of [45°/−45°]4 only, indicating it had a poor bending resistance performance.
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This research aimed to explore the influence of fiber laying angles on the bending resistance properties of carbon fiber/foam sandwich structural composites. Four kinds of composites with the following laying angles: [0°]8, [0°/45°/90°/−45°]s, [0°/90°]4 and [45°/−45°]4 were prepared and tested in three-point bending experiments. The results obtained showed that the bending resistance performance was the best when the laying angle was [0°]8, while it was the worst when the laying angle was [45°/−45°]4. Besides, it was found that the tensile performance was the best when the fibers were arranged in the 0° direction when the strength utilisation rate was the highest. In addition, by observing the failure morphologies of the composites, the delamination and foam cracking were found in the four groups of composites. In contrast, the phenomenon of significant fracture was found on composites with a laying angle of [45°/−45°]4 only, indicating it had a poor bending resistance performance.

Comparison of the Bending Resistance Properties of Carbon Fiber/Foam Sandwich Structural Composites with Different Laying Angles

College of Textile Science and Engineering (International Institute of Silk)

Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province

Fibres & Textiles in Eastern Europe

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This research aimed to explore the influence of fiber laying angles on the bending resistance properties of carbon fiber/foam sandwich structural composites....

Specimen	Laying angle
A	[0°]₈
B	[0°/45°/90°/−45°]s
C	[0°/90°]₄
D	[45°/−45°]₄

Group	Laying angle	Failure load (N)	Bending strength (MPa)
A	[0°]₈	762.67	64.63
B	[0°/45°/90°/−45°]_s	454.23	38.49
C	[0°/90°]₄	355.80	30.15
D	[45°/−45°]₄	92.47	7.84

Comparison of the Bending Resistance Properties of Carbon Fiber/Foam Sandwich Structural Composites with Different Laying Angles

Article Category: Research Article

Data publikacji: 08 cze 2022

Zakres stron: 75 - 81

DOI: https://doi.org/10.2478/ftee-2022-0010

Słowa kluczowe
sandwich structure, composite, carbon fiber, ply angle, three-point bending

© 2022 Lvtao Zhu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Laying methods for the specimens tested

Obtained results of sandwich structural composites tested

Specifications of the carbon fiber unidirectional prepreg

Mechanical parameters of the PMI foam board

Comparison of the Bending Resistance Properties of Carbon Fiber/Foam Sandwich Structural Composites with Different Laying Angles

Article Category: Research Article

Data publikacji: 08 cze 2022

Zakres stron: 75 - 81

DOI: https://doi.org/10.2478/ftee-2022-0010

Słowa kluczowesandwich structure, composite, carbon fiber, ply angle, three-point bending

© 2022 Lvtao Zhu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Laying methods for the specimens tested

Obtained results of sandwich structural composites tested

Specifications of the carbon fiber unidirectional prepreg

Mechanical parameters of the PMI foam board

Słowa kluczowe
sandwich structure, composite, carbon fiber, ply angle, three-point bending