Electrical resistance change method for damage monitoring of woven graphite/epoxy laminate

被引：0

作者：

Hirano, Y. ^{[1
]}

Todoroki, A. ^{[2
]}

机构：

[1] Japan Aerosp Explorat Agcy, Adv Composite Technol Ctr, 6-13-1 Ohsawa, Mitaka, Tokyo 1810015, Japan

[2] Tokyo Inst Technol, Dept Mech Sci & Technol, Meguro Ku, Tokyo 1528552, Japan

来源：

NONDESTRUCTIVE EVALUATION AND HEALTH MONITORING OF AEROSPACE MATERIALS, COMPOSITES, AND CIVIL INFRASTRUCTURE V | 2006年 / 6176卷

关键词：

woven composites; electrical resistance; damage; delamination; carbon; epoxy; laminates;

D O I：

10.1117/12.658294

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This paper examines damage monitoring for woven graphite/epoxy laminate by means of an electrical resistance change method. The method has been proposed by the authors and successfully applied to cross-ply and quasi-isotropic laminates; the method has yet to be applied to woven laminates. Therefore, a woven graphite/epoxy composite is selected for the target material of the electrical resistance change method to identify the damage. Beam type specimens consisting of woven laminates are the focus of this paper. The influence of a different electrical property of woven laminate upon the electrical resistance change is investigated both analytically and experimentally, and the condition of the electrical contact between the electrode and the specimen is investigated experimentally. For the purpose of identification, the response surface is adopted as a solving method for the inverse problem. As a result, the method shows excellent performance for estimating delamination locations and sizes.

引用

页数：9

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