JP6162186B2 - 準等方性ラミネート材を用いた複合構造 - Google Patents
準等方性ラミネート材を用いた複合構造 Download PDFInfo
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- JP6162186B2 JP6162186B2 JP2015172206A JP2015172206A JP6162186B2 JP 6162186 B2 JP6162186 B2 JP 6162186B2 JP 2015172206 A JP2015172206 A JP 2015172206A JP 2015172206 A JP2015172206 A JP 2015172206A JP 6162186 B2 JP6162186 B2 JP 6162186B2
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- 239000002131 composite material Substances 0.000 title claims description 107
- 238000000034 method Methods 0.000 claims description 30
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 description 32
- 239000002648 laminated material Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 239000012779 reinforcing material Substances 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 230000032798 delamination Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000012783 reinforcing fiber Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum or titanium Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- B29C70/202—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC]
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Description
を備える複合ラミネート材。
第1の複合部材、及び
第1の複合部材に結合されて、第1の複合部材により補強された第2の複合部材であって、各々が一方向性の補強ファイバと一のファイバ配向とを有する複数の複合プライが積み重なったスタックを含んでいる第2の複合部材
を備え、
スタック中の少なくとも一部の隣接し合うプライが、第2の複合部材中の亀裂の伝播を止めるのに十分な量だけ異なるポアソン比をそれぞれ有している、
複合構造。
第2の複合部材が、フレームを覆う胴体外板である、
請求項4に記載の複合構造。
少なくとも一の補強材、及び
補強材に結合された外板であって、各々が一のファイバ配向を有し、一方向性のファイバ補強複合材料からなる複数のプライのスタックを含む外板
を備え、
複数のプライが、補強材に接近する外板中の亀裂の伝播経路を変更するファイバ配向シーケンスに積み重ねられている、
複合材料からなる機体。
外板が接着により補強材に結合されている、
請求項8に記載の複合材料からなる機体。
複合材料からなるフレーム部材を作製すること、
複合外板を作製することであって、一方向性のファイバ強化複合プライのスタックを、外板に準等方性の特性を付与するプライ配向シーケンスに積み上げることを含むこと、及び
フレーム部材を外板に結合すること
を含む方法。
を更に含む、請求項12に記載の方法。
を更に含む、請求項14に記載の方法。
各々がファイバ強化複合ラミネート材から形成された、複合材料からなる複数のバレル状フレーム部材、及び
フレーム部材に接着される複合外板であって、一方向性のファイバ補強ポリマーからなる重ね合わせた複数のプライを含み、これらのプライが、各々が一の共通するファイバ配向を有する複数の組に構成されており、隣接し合う組のファイバ配向が少なくとも約45°異なっており、隣接し合うプライの組のポアソン比の不一致が通常約15〜40%である、複合外板
を備える機体。
複数の複合材料からなるフレーム部材を作製すること、
複合外板を作製することであって、
外板中の亀裂を止める助けとなるのに必要な、隣接し合うプライ間のポアソン比の不一致レベルを決定することと、
一方向性のファイバ補強複合プライからなるプライのスタックを、決定されたポアソン比の不一致レベルを達成する配向に積み上げることと
を含むこと、並びに
外板にフレーム部材を接着すること
を含む方法。
υ=−εt/εl
と表わすことができ、ここで
υ=ポアソン比
εt=横方向の歪み
εl=縦方向又は軸方向の歪み
であり、歪みは
ε=dl/Lと表わすことができ、ここで
dl=長さの変化
L=最初の長さ
である。
また、本願は以下に記載する態様を含む。
(態様1)
亀裂を止める機能を有する複合構造であって、
第1の複合部材、及び
前記第1の複合部材に結合されて前記第1の複合部材により補強される第2の複合部材であって、各々が一方向性の補強ファイバと一のファイバ配向とを有する複数の複合プライを重ね合わせたスタックを含む第2の複合部材
を備えており、
前記スタック中の少なくとも一部の隣接し合うプライが、前記第2の複合部材の亀裂の伝播を止めるのに十分に異なるポアソン比をそれぞれ有している、複合構造。
(態様2)
前記ポアソン比の差異が通常約15〜40%である、態様1に記載の複合構造。
(態様3)
前記少なくとも一部の隣接し合うプライのファイバ配向が約45°である、態様1に記載の複合構造。
(態様4)
前記第1の複合部材が航空機のフレームであり、且つ
前記第2の複合部材が前記フレームを覆う胴体外板である、
態様1に記載の複合構造。
(態様5)
亀裂を止める機能を有する複合材料からなる機体を構築する方法であって、
複合材料からなるフレーム部材を作製すること、
複合外板を作製することであって、一方向性のファイバ補強複合プライのスタックを、
外板に準等方性の特性を付与するプライ配向シーケンスで積み上げることを含むこと、及び
前記外板に前記フレーム部材を結合すること
を含む方法。
(態様6)
前記プライのスタックを積み上げることが、隣接し合うプライのファイバ配向が少なくとも約45°相違するように、隣接し合うプライの向きを合わせることを含む、態様5に記載の方法。
(態様7)
外板が準等方性の特性を示すように、前記スタック中における隣接し合うプライ間のポアソン比の不一致レベルを決定すること
を更に含む、態様5に記載の方法。
(態様8)
前記決定されたポアソン比の不一致レベルを達成するプライ配向シーケンスを選択する
こと
を更に含む、態様7に記載の方法。
(態様9)
前記外板に前記フレーム部材を結合することが、前記外板に前記フレーム部材を接着することを含む、態様5に記載の方法。
Claims (1)
- 亀裂を止める機能を有する複合材料からなる機体(20)を構築する方法であって、前記複合材料からなる機体(20)は複合材料からなるフレーム部材(24)および複合外板(22)を含み、前記複合外板(22)が外板に準等方性の特性を付与するプライ配向シーケンスで積層された一方向性のファイバ補強複合プライ(46)のスタックを含み、前記方法が、
前記複合外板が準等方性の特性を示すように、前記スタックの隣接したプライ間のポアソン比の不一致レベルを決定することであって、各プライのポアソン比が印加される荷重に対して垂直な横方向の歪みの、前記印加される荷重の方向の軸方向の歪みに対する比であり、前記軸方向の歪みは前記機体の縦軸に平行な方向において測定され、前記ポアソン比は互いに15%〜40%の範囲で異なる、決定すること、
前記ポアソン比の不一致を前記決定したレベルになるようにプライ配向のシーケンスを選択すること、
複合材料からなるフレーム部材(24)を作製すること、
複合外板(22)を作製することであって、一方向性のファイバ補強複合プライ(46)のスタックを、外板に準等方性の特性を付与するプライ配向シーケンスで積み上げることを含む、作製すること、及び
前記外板に前記フレーム部材を結合すること
を含む、方法。
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EP (1) | EP2406071B1 (ja) |
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2009
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-
2010
- 2010-03-04 EP EP10707416.3A patent/EP2406071B1/en active Active
- 2010-03-04 WO PCT/US2010/026229 patent/WO2010104741A1/en active Application Filing
- 2010-03-04 ES ES10707416.3T patent/ES2564837T3/es active Active
- 2010-03-04 JP JP2011554087A patent/JP2012520205A/ja active Pending
-
2015
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EP2406071A1 (en) | 2012-01-18 |
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