Structural health monitoring of CFRP airframe structures using fiber-optic-based strain mapping

被引：1

作者：

Takahashi, I. ^{[1
]}

Sekine, K. ^{[1
]}

Kume, M. ^{[1
]}

Takeya, H. ^{[1
]}

Iwahori, Y. ^{[2
]}

Minakuchi, S. ^{[3
]}

Takeda, N. ^{[3
]}

Enomoto, K. ^{[4
]}

机构：

[1] Mitsubishi Electr Corp, 8-1-1 Tsukaguchi Hommachi, Amagasaki, Hyogo 6618661, Japan

[2] Japan Aerosp Explorat Agcy, Mitaka, Tokyo 1810005, Japan

[3] Univ Tokyo, Kashiwa, Chiba 2778561, Japan

[4] Mat Proc Technol Ctr, Minato Ku, Tokyo 1050011, Japan

来源：

SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2012, PTS 1 AND 2 | 2012年 / 8345卷

关键词：

CFRP; life-cycle health monitoring; strain mapping; FBG sensors; pressure bulkheads;

D O I：

10.1117/12.914226

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes structural health monitoring technology based on the strain mapping of composite airframe structures through their life cycles by FBG sensors. We carried out operational load tests of small-sized mockup specimens of CFRP pressure bulkhead and measured the strain by FBG sensors. In addition, we confirmed strain change due to stiffener debondings. Moreover, debonding detectability of FBG sensors were investigated through the strain monitoring test of CFRP skin-stiffener panel specimens. As a result, the strain distribution varied with damage configurations. Moreover, the change in strain distribution measured by FBG sensors agrees well with numerical simulation. These results demonstrate that FBG sensors can detect stiffener debondings with the dimension of 5mm in composite airframe structures.

引用

页数：11

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