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Experimental Study on Angular Flexural Performance of Multiaxis Three Dimensional (3D) Polymeric Carbon
Huseyin Ozdemir1, Kadir Bilisik2,3
1Vocational School of Technical Sciences, Gaziantep University, Gaziantep 27310, Turkey.
Polymers
|September 28, 2021
Summary
Multiaxis 3D carbon fiber concrete significantly enhances flexural strength and energy absorption. This advanced composite material demonstrates superior damage tolerance compared to traditional concrete.
Area of Science:
- Materials Science
- Civil Engineering
- Composite Materials
Background:
- Traditional concrete exhibits brittle behavior and limited tensile strength.
- Enhancing concrete's mechanical properties is crucial for advanced construction applications.
Purpose of the Study:
- To investigate the off-axis flexural properties of multiaxis 3D continuous polymeric carbon fiber/cementitious concrete composites.
- To evaluate the influence of fiber orientation on the mechanical performance and failure mechanisms of these composites.
Main Methods:
- Experimental testing of uniaxial, biaxial, and multiaxial 3D concrete composites with varying carbon fiber orientations.
- Analysis of flexural strength, energy absorption, and fracture behavior.
Main Results:
- Off-axis flexural strength increased by 36.84% to 272.43% compared to neat concrete.
- Multiaxis 3D concrete composites exhibited superior energy absorption capacities.
- Fracture analysis revealed controlled cracking and damage tolerance in the C-4D structure.
Conclusions:
- The orientation and placement of continuous carbon fibers significantly impact the flexural strength and energy absorption of 3D concrete composites.
- Multiaxis 3D polymeric carbon fiber concrete, particularly the C-4D configuration, offers improved damage tolerance and crack control.
- These findings suggest potential for advanced structural applications using 3D fiber-reinforced concrete.
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