Dynamic compressive properties of unidirectional composites made of TG800 carbon fiber and epoxy resin

PAN Yue-xiu; BAO Jia-wei; WANG Fan-wen; ZHANG Ling-dong; WANG Yang-wei; CHENG Xing-wang; YANG Yun-hua

doi:10.19869/j.ncm.1007-8827.20200128

Volume 35 Issue 6

Dec. 2020

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Article Navigation > New Carbon Mater. > 2020 > 35(6): 785-792

PAN Yue-xiu, BAO Jia-wei, WANG Fan-wen, ZHANG Ling-dong, WANG Yang-wei, CHENG Xing-wang, YANG Yun-hua. Dynamic compressive properties of unidirectional composites made of TG800 carbon fiber and epoxy resin. New Carbon Mater., 2020, 35(6): 785-792. doi: 10.19869/j.ncm.1007-8827.20200128

Citation:

PAN Yue-xiu, BAO Jia-wei, WANG Fan-wen, ZHANG Ling-dong, WANG Yang-wei, CHENG Xing-wang, YANG Yun-hua. Dynamic compressive properties of unidirectional composites made of TG800 carbon fiber and epoxy resin. New Carbon Mater., 2020, 35(6): 785-792. doi: 10.19869/j.ncm.1007-8827.20200128

Citation:

PAN Yue-xiu, BAO Jia-wei, WANG Fan-wen, ZHANG Ling-dong, WANG Yang-wei, CHENG Xing-wang, YANG Yun-hua. Dynamic compressive properties of unidirectional composites made of TG800 carbon fiber and epoxy resin. New Carbon Mater., 2020, 35(6): 785-792. doi: 10.19869/j.ncm.1007-8827.20200128

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Dynamic compressive properties of unidirectional composites made of TG800 carbon fiber and epoxy resin

doi: 10.19869/j.ncm.1007-8827.20200128

1.
Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China;
2.
Science and Technology on Advanced Functional Composites Laboratory, Beijing 100076, China;
3.
School of Materials Science&Engineering, Beijing Institute of Technology, Beijing 100081, China;
4.
National key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing 100081, China;
5.
The Second Military Representative Office of the Rocket Army Equipment Department in Beijing Area, Beijing 100076, China

Received Date: 2020-07-10
Rev Recd Date: 2020-10-13
Publish Date: 2020-12-31

Abstract

Abstract

The dynamic compressive properties of unidirectional composites made of TG800 carbon fibers and an epoxy resin were tested by the split Hopkinson pressure bar method. Effects of the fiber diameter and surface treatment by anodic oxidation on the dynamic compressive properties and fracture failure modes of the composites were investigated by SEM combined with numerical simulation. Results indicated that the TG800/epoxy resin composites had a brittle fracture behavior and strength increased as strain rate, interface strength or fiber diameter increased during dynamic compressive property testing. With strong interfacial bonding enabled by the surface treatment, when the fiber diameter was increased from 5 to 6 μm the dynamic compressive strength increased by about 18% and the primary failure mode changed from fiber breakage and debonding between fiber and resin to plastic deformation of the resin and debonding between fiber and resin. When 5.4 μm diameter fibers were used, a comparison of weak (not oxidized) versus strong interfacial bonding, showed that the dynamic compressive strength for the former was about 6% lower, and the failure mode of the latter was fiber breakage, plastic deformation of the resin, and debonding between fiber while the former was only debonding between fiber and resin.
- Dynamic compressive properties,
- Failure modes,
- Fiber diameter,
- TG800 carbon fiber,
- Unidirectional composite

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References(20)

References

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