Modeling the Impedance of a CFRP Unidirectional Laminate
-
- OGI Keiji
- Department of Materials Science and Engineering, Faculty of Engineering, Ehime University
-
- INOUE Hiroki
- Graduate School of Ehime University
Bibliographic Information
- Other Title
-
- CFRP一方向板のインピーダンスモデル
- CFRP 1ホウコウバン ノ インピーダンス モデル
Search this article
Abstract
This paper presents impedance response to alternating current in a CFRP unidirectional (UD) laminate. Firstly, impedance and its phase angle for frequency ranging from 1 kHz to 1 MHz were measured for the specimens with various off-axis angles. Secondly, change in impedance during tensile loading was measured for the above specimens. Finally, a simple model was proposed to express impedance properties of a UD laminate using an equivalent electric circuit. The norm of impedance is almost independent of frequency for all off-axis angles. The phase angle is kept to be constant for the off-axis angle below 45°while it becomes negative at high frequency for the off-axis angle larger than 60°. This behavior is expressed by an equivalent circuit model introducing a capacitance element. Impedance response to mechanical strain is almost linear for all the off-axis angles. Piezoresistance behavior at low strain was characterized on the basis of the above model.
Journal
-
- Journal of the Japan Society for Composite Materials
-
Journal of the Japan Society for Composite Materials 32 (2), 61-66, 2006
The Japan Society for Composite Materials
- Tweet
Details 詳細情報について
-
- CRID
- 1390282679598535040
-
- NII Article ID
- 10023982060
-
- NII Book ID
- AN00196748
-
- ISSN
- 18848559
- 03852563
-
- NDL BIB ID
- 7889306
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed