Interlaminar contact resistivity and its influence on eddy currents in carbon fiber reinforced polymer laminates

Xiaojuan Xu; Hongli Ji; Jinhao Qiu; Jun Cheng; Yipeng Wu; Toshiyuki Takagi

doi:10.1016/j.ndteint.2017.12.003

Interlaminar contact resistivity and its influence on eddy currents in carbon fiber reinforced polymer laminates

Xiaojuan Xu, Hongli Ji, Jinhao Qiu, Jun Cheng, Yipeng Wu, Toshiyuki Takagi

Innovative Energy Research Center

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

In this study, contact resistivity of interlaminar interface and its influence on eddy currents in carbon fiber reinforced polymer (CFRP) laminates were thoroughly investigated. Measurements of the contact resistivity between the adjacent laminae were conducted experimentally, together with the anisotropic bulk conductivity of a single-layer lamina. The measured values were then used in finite element (FE) models to study the influence of the contact resistivity on eddy currents in CFRP laminates. It was found that eddy currents are highly concentrated around the laminae interfaces when contact resistivity is taken into account, while the currents experience a steep drop in a non-contact model. The FE results were verified by comparing the calculated voltages with the experimentally measured ones. In addition, effects of electrodes size on the electric potential in CFRP were numerically analyzed. It was observed that electric potential diffuses due to the electrical anisotropy in CFRP, and thus the visible electrodes area is not the effective one.

Original language	English
Pages (from-to)	79-91
Number of pages	13
Journal	NDT and E International
Volume	94
DOIs	https://doi.org/10.1016/j.ndteint.2017.12.003
Publication status	Published - 2018 Mar

Keywords

CFRP
Contact resistivity
Eddy current
Electrodes size

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1016/j.ndteint.2017.12.003

Cite this

@article{b079d5f0b7e24c5fac8b2fb9e02546c2,

title = "Interlaminar contact resistivity and its influence on eddy currents in carbon fiber reinforced polymer laminates",

abstract = "In this study, contact resistivity of interlaminar interface and its influence on eddy currents in carbon fiber reinforced polymer (CFRP) laminates were thoroughly investigated. Measurements of the contact resistivity between the adjacent laminae were conducted experimentally, together with the anisotropic bulk conductivity of a single-layer lamina. The measured values were then used in finite element (FE) models to study the influence of the contact resistivity on eddy currents in CFRP laminates. It was found that eddy currents are highly concentrated around the laminae interfaces when contact resistivity is taken into account, while the currents experience a steep drop in a non-contact model. The FE results were verified by comparing the calculated voltages with the experimentally measured ones. In addition, effects of electrodes size on the electric potential in CFRP were numerically analyzed. It was observed that electric potential diffuses due to the electrical anisotropy in CFRP, and thus the visible electrodes area is not the effective one.",

keywords = "CFRP, Contact resistivity, Eddy current, Electrodes size",

author = "Xiaojuan Xu and Hongli Ji and Jinhao Qiu and Jun Cheng and Yipeng Wu and Toshiyuki Takagi",

note = "Funding Information: This work was supported by the Major State Basic Research Development Program of China (973 Program, No. 2015CB057501 ), the Fundamental Research Funds of the Central Universities (No. NP2016201 ), the Research Fund of State Key Laboratory of Mechanics and Control of Mechanical Structures (No. 0515Y02 & NE2015101 ), the “333” project of Jiangsu Province (No. BRA2015310 ) and the Priority Academic Program Development of Jiangsu Higher Education Institutions ( PAPD ). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = mar,

doi = "10.1016/j.ndteint.2017.12.003",

language = "English",

volume = "94",

pages = "79--91",

journal = "NDT International",

issn = "0963-8695",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Interlaminar contact resistivity and its influence on eddy currents in carbon fiber reinforced polymer laminates

AU - Xu, Xiaojuan

AU - Ji, Hongli

AU - Qiu, Jinhao

AU - Cheng, Jun

AU - Wu, Yipeng

AU - Takagi, Toshiyuki

N1 - Funding Information: This work was supported by the Major State Basic Research Development Program of China (973 Program, No. 2015CB057501 ), the Fundamental Research Funds of the Central Universities (No. NP2016201 ), the Research Fund of State Key Laboratory of Mechanics and Control of Mechanical Structures (No. 0515Y02 & NE2015101 ), the “333” project of Jiangsu Province (No. BRA2015310 ) and the Priority Academic Program Development of Jiangsu Higher Education Institutions ( PAPD ). Publisher Copyright: © 2017 Elsevier Ltd

PY - 2018/3

Y1 - 2018/3

N2 - In this study, contact resistivity of interlaminar interface and its influence on eddy currents in carbon fiber reinforced polymer (CFRP) laminates were thoroughly investigated. Measurements of the contact resistivity between the adjacent laminae were conducted experimentally, together with the anisotropic bulk conductivity of a single-layer lamina. The measured values were then used in finite element (FE) models to study the influence of the contact resistivity on eddy currents in CFRP laminates. It was found that eddy currents are highly concentrated around the laminae interfaces when contact resistivity is taken into account, while the currents experience a steep drop in a non-contact model. The FE results were verified by comparing the calculated voltages with the experimentally measured ones. In addition, effects of electrodes size on the electric potential in CFRP were numerically analyzed. It was observed that electric potential diffuses due to the electrical anisotropy in CFRP, and thus the visible electrodes area is not the effective one.

AB - In this study, contact resistivity of interlaminar interface and its influence on eddy currents in carbon fiber reinforced polymer (CFRP) laminates were thoroughly investigated. Measurements of the contact resistivity between the adjacent laminae were conducted experimentally, together with the anisotropic bulk conductivity of a single-layer lamina. The measured values were then used in finite element (FE) models to study the influence of the contact resistivity on eddy currents in CFRP laminates. It was found that eddy currents are highly concentrated around the laminae interfaces when contact resistivity is taken into account, while the currents experience a steep drop in a non-contact model. The FE results were verified by comparing the calculated voltages with the experimentally measured ones. In addition, effects of electrodes size on the electric potential in CFRP were numerically analyzed. It was observed that electric potential diffuses due to the electrical anisotropy in CFRP, and thus the visible electrodes area is not the effective one.

KW - CFRP

KW - Contact resistivity

KW - Eddy current

KW - Electrodes size

UR - http://www.scopus.com/inward/record.url?scp=85038837457&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038837457&partnerID=8YFLogxK

U2 - 10.1016/j.ndteint.2017.12.003

DO - 10.1016/j.ndteint.2017.12.003

M3 - Article

AN - SCOPUS:85038837457

VL - 94

SP - 79

EP - 91

JO - NDT International

JF - NDT International

SN - 0963-8695

ER -

Interlaminar contact resistivity and its influence on eddy currents in carbon fiber reinforced polymer laminates

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this