Discrete conductivity modeling method for plain weave carbon fiber reinforced resin composites

ZHANG Ronghua; SHI Keyu; LI Shuo; ZHANG Yifan

doi:10.13801/j.cnki.fhclxb.20200327.001

Volume 37 Issue 12

Dec. 2020

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ZHANG Ronghua, SHI Keyu, LI Shuo, et al. Discrete conductivity modeling method for plain weave carbon fiber reinforced resin composites[J]. Acta Materiae Compositae Sinica, 2020, 37(12): 3119-3127. doi: 10.13801/j.cnki.fhclxb.20200327.001

Citation:

ZHANG Ronghua, SHI Keyu, LI Shuo, et al. Discrete conductivity modeling method for plain weave carbon fiber reinforced resin composites[J]. Acta Materiae Compositae Sinica, 2020, 37(12): 3119-3127. doi: 10.13801/j.cnki.fhclxb.20200327.001

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Discrete conductivity modeling method for plain weave carbon fiber reinforced resin composites

doi: 10.13801/j.cnki.fhclxb.20200327.001

ZHANG Ronghua^{1
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SHI Keyu^2
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LI Shuo^2
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ZHANG Yifan³

1.
School of Artificial Intelligence, Tiangong University, Tianjin 300387, China
2.
School of Electrical Engineering and Automation, Tiangong University, Tianjin 300387, China
3.
Ministry of Education Key Laboratory of Advanced Textile Composite Materials, Institute of Textile Composites, Tiangong University, Tianjin 300387, China

Received Date: 2020-02-04
Accepted Date: 2020-03-16

Available Online: 2020-03-27

Publish Date: 2020-12-15

Abstract

Abstract

The electrical impedance distribution of carbon fiber reinforced resin composites (CFRP) with weaving technology has the characteristics of anisotropy, heterogeneity and complex geometric structure. Establishing the electrical impedance distribution model is the key joint to obtain the defect and fatigue damage information of CFRP in the braiding process by using electromagnetic eddy current nondestructive testing technology. Based on the theory of electrical impedance tensor modeling, the method of characterizing the electrical characteristics of the multi-layer braided structure CFRP two-dimensional plane was established, and a simplified electrical impedance distribution model of the braided CFRP was established, thereby realizing the accurate and fast finite element analysis of the electromagnetic properties of the braided CFRP. Based on the finite element simulation, the electromagnetic nondestructive testing of plain weave CFRP was designed by designing a dual-air rotating coil electromagnetic sensor. The polar coordinate chart of the impedance was used to describe the impedance change trend of the measured material in different directions. The correctness of the finite element modeling was proved by experiment. Finally, the proposed modeling method was used to simulate the detection effect of the double air rotating coil sensor on the structural defects and cyclic load fatigue of the plain weave CFRP.
- eddy current testing,
- finite element method,
- plain weave,
- CFRP,
- defect detection
Long Abstrsct
Innovation Points

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References(26)

References

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