JP2009006497A - 繊維強化プラスチックパネル及びその異常検出方法並びに繊維補強基材 - Google Patents
繊維強化プラスチックパネル及びその異常検出方法並びに繊維補強基材 Download PDFInfo
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
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Abstract
【解決手段】繊維強化プラスチックパネル1の製造後に、内部に埋設して両端部をパネル端面まで延設した導線4aの通電の有無を測定器6により検査して通電しない場合には、パネル内部が変形等の損傷を受けていると判断し、内部に埋設した導線4から選択した2本の導線4a、4e間の電気容量または電気抵抗を測定器6により測定して、所定の値よりも大きな場合には、パネル内部に空隙があると判断する。また、繊維強化プラスチックパネル1を製造する際に、導線4を配設した繊維補強基材3を積層体2の一部として積層するだけで、パネルの硬化後にはパネル内部の異常を検出する導線4になる。
【選択図】 図2
Description
次いで、本発明の別の異常検出方法について説明する。図3に例示するように、繊維強化プラスチックパネル1に埋設された複数本の導線4の中、1本の導線4aを選択し、この導線4aのパネル端面に位置する両端部を、リード線を介して測定器6に接続する。この測定器6は、導線4aの通電の有無を検査するのものであり、その検査結果はモニタリング装置7に表示される。測定器6としては電気抵抗計(テスター)を用いることができる。
このように、本発明の繊維強化プラスチックパネル1とその異常検出方法によれば、硬化させた後の繊維強化プラスチックパネル1の内部の異常(空隙や損傷等)を、高価な装置を用いることなく容易に検出することができる。
2 積層体
3 繊維補強基材
3a 導線を有しない繊維補強基材
4、4a、4b、4c、4d、4e、4f、4g、4h 導線
5 繊維
6 測定器
7 モニタリング装置
8 モールド
9 供給チューブ
10 バキュームバッグ
11 吸引パイプ
W 樹脂材料
Claims (8)
- 繊維補強基材を積層した積層体に樹脂材料を含浸させた後に、硬化させて形成した繊維強化プラスチックパネルにおいて、前記形成した繊維強化プラスチックパネルの内部に導線を埋設し、該導線の両端部をパネル端面まで延設した繊維強化プラスチックパネル。
- 前記導線を複数本、互いを非接触状態で繊維強化プラスチックパネルの内部に埋設した請求項1に記載の繊維強化プラスチックパネル。
- 前記導線を格子状に繊維強化プラスチックパネルの内部に埋設した請求項2に記載の繊維強化プラスチックパネル。
- 請求項1〜3のいずれかに記載の繊維強化プラスチックパネルに埋設された導線の通電の有無を検査し、該検査結果に基づいて繊維強化プラスチックパネルの損傷の有無を検出するようにした繊維強化プラスチックパネルの異常検出方法。
- 請求項2または3に記載の繊維強化プラスチックパネルに埋設された複数本の導線の中、選択した2本の導線間の電気容量または電気抵抗を測定し、該測定結果に基づいて繊維強化プラスチックパネルの空隙の有無を検出するようにした繊維強化プラスチックパネルの異常検出方法。
- 複数積層した状態にして負圧下で樹脂材料を含浸させた後に、硬化させることにより繊維強化プラスチックパネルを形成する繊維補強基材において、前記繊維補強基材を構成する繊維織物に導線を配設し、該導線の両端部が前記形成する繊維強化プラスチックパネルの端面まで延設される繊維補強基材。
- 前記導線を複数本、互いを非接触状態で繊維織物に配設した請求項6に記載の繊維補強基材。
- 前記導線を格子状に繊維織物に配設した請求項7に記載の繊維補強基材。
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Cited By (8)
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US9233765B2 (en) | 2011-06-16 | 2016-01-12 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Multi-dimensional damage detection |
JP2016141329A (ja) * | 2015-02-04 | 2016-08-08 | 川崎重工業株式会社 | 鉄道車両用台車の板バネの状態監視装置 |
KR20170011600A (ko) | 2015-07-23 | 2017-02-02 | 한양대학교 산학협력단 | 전도성 복합재료 구조물의 손상 감지 및 손상 이력 기록 장치 및 그 제조방법 |
WO2017043079A1 (ja) * | 2015-09-10 | 2017-03-16 | 川崎重工業株式会社 | 鉄道車両用台車の電極付き板バネの製造方法 |
KR20190005448A (ko) * | 2017-07-06 | 2019-01-16 | 조선대학교산학협력단 | 격자 구조 센서를 이용한 복합재 구조물의 손상 진단 기술 |
EP3616891A1 (en) * | 2018-09-03 | 2020-03-04 | Subaru Corporation | Resin impregnation measurement system |
KR20200062813A (ko) * | 2018-11-27 | 2020-06-04 | 울산과학기술원 | 탄소섬유복합재의 손상 예측 시스템 및 방법 |
FR3132865A1 (fr) * | 2022-02-22 | 2023-08-25 | Safran Aircraft Engines | Piece en materiau composite, pour une turbomachine, equipee d’un element de detection et procede de fabrication d’une telle piece |
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JP2003053744A (ja) * | 2001-08-20 | 2003-02-26 | Toray Ind Inc | Rtm成形方法 |
JP2004333306A (ja) * | 2003-05-08 | 2004-11-25 | National Institute Of Advanced Industrial & Technology | 形状記憶合金の損傷位置検出方法、自己感知型加熱制御法及び自己修復方法並びに複合材料製パネル及び絶縁皮膜で覆った形状記憶合金 |
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JP2003053744A (ja) * | 2001-08-20 | 2003-02-26 | Toray Ind Inc | Rtm成形方法 |
JP2004333306A (ja) * | 2003-05-08 | 2004-11-25 | National Institute Of Advanced Industrial & Technology | 形状記憶合金の損傷位置検出方法、自己感知型加熱制御法及び自己修復方法並びに複合材料製パネル及び絶縁皮膜で覆った形状記憶合金 |
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US10138005B2 (en) | 2011-06-16 | 2018-11-27 | The United States Of America As Represented By The Administrator Of Nasa | Multi-dimensional damage detection |
KR101967332B1 (ko) | 2015-02-04 | 2019-04-09 | 카와사키 주코교 카부시키 카이샤 | 철도 차량용 대차의 판 스프링 상태 감시 장치 |
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KR101991891B1 (ko) | 2017-07-06 | 2019-06-21 | 조선대학교 산학협력단 | 격자 구조 센서를 이용한 복합재 구조물의 손상 진단 기술 |
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