JP7426492B2 - 複合材料製パネル構造体およびその製造方法 - Google Patents
複合材料製パネル構造体およびその製造方法 Download PDFInfo
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Description
構成である。
本開示に係る複合材料製パネル構造体の代表的な一例について、図1および図2を参照して具体的に説明する。なお、以下の説明では、説明の便宜上、複合材料製パネル構造体を、適宜「パネル構造体」と略す場合がある。
次に、パネル構造体10のリブ12およびリブ基底部14について図2を参照して説明する。図2は、図1に示すパネル構造体10におけるリブ12およびリブ基底部14の断面構成を示す模式図である。
図3Aおよび図2に示すように、フィラー領域15は、ウェブ部11のリブ基底部14に含まれる。本実施の形態では、リブ基底部14のフィラー領域15に対応する部位のみにフィラー層23を積層する。
次に、パネル構造体10を製造するために用いられるプリプレグおよびその積層体について、図4A、図4Bを参照して説明する。なお、図4A、図4Bにおいても、図3Aと同様に、説明の便宜上、第一面および第二面を「第一面11a」および「第二面11b」として符号を付して図示する。図4A、図4Bに示す例では、図面下側が第一面11aであり、図面上側が第二面11bである。
次に、パネル構造体の製造方法について、図5A、図5B、図6A、図6B、並びに図7A、図7Bを参照して具体的に説明する。
本開示に係るパネル構造体10の具体的な形状は図1に示す構造に限定されない。パネル構造体10は、基板部とリブとを備え、基板部が複数の複合材料層が積層されたものであり、リブが基板部に対して立設する板状である構造にできる。したがって、図1に示すようなパネル構造体10は、Z形断面ではなくてもよいし、両側縁部の少なくとも一方がフランジ部でなくてもよい。また、リブの延伸方向も図1に示すような側縁部に対して直行する方向でなくてもよい。ただし、前述したように、基板部のうち少なくともリブ基底部14には、複合材料層に加えてダブラ層が積層される構造にできる。複合材料層は、基板部を構成する基本となる層であり、ダブラ層は、追加的な複合材料層であり、リブ12にはその先端部まで強化繊維が配置している。
11:ウェブ部(基板部)
11a:第一面
11b:第二面
12:リブ
13a,13b:フランジ部
14:リブ基底部
15:フィラー領域
16a:第一面側積層体
16b:第二面側積層体
17:リブ基底領域
20:マトリクス樹脂
21:基本層(複合材料層、強化繊維)
22:ダブラ層(複合材料層、強化繊維)
23:フィラー層(複合材料層、強化繊維)
30A,30B:プリプレグ積層体
31:基本プライ(プリプレグ)
32:ダブラプライ(プリプレグ)
33:フィラープライ(プリプレグ)
40:成形型
41:上型
42:下型
43:上側熱盤
44:下側熱盤
45:キャビティ
46:締結部材
Claims (11)
- 強化繊維およびマトリクス樹脂を含有する複合材料製のプレス成形品であるパネル構造体であって、
基板部と、
当該基板部に対して立設するリブと、を備え、
前記基板部には、前記基板部および前記リブの体積から算出される前記基板部の必要板厚に基づいて積層数が決定された複合材料層である基本層が積層され、
前記基板部のうち、少なくとも前記リブが立設するリブ基底部には、前記基本層に加えて連続繊維を含むシート状の複合材料層であるダブラ層が積層され、
前記リブの先端部まで前記強化繊維が配置している、
複合材料製パネル構造体。 - 前記パネル構造体の設計上の体積を成形基準体積としたとき、
前記基本層と前記ダブラ層との合計積層数は、前記成形基準体積以上から前記成形基準体積の1.25倍以下までの範囲内となる積層数である、
請求項1に記載の複合材料製パネル構造体。 - 前記リブおよび前記リブと湾曲してつながり前記基板部の一部を構成する複合材料層を第一面側積層体とし、
前記リブと反対側の前記第一面側積層体表面に配置され、前記基板部を構成する複合材料層を第二面側積層体とし、
前記第一面側積層体と前記第二面側積層体との間に生じる、前記リブに沿って延伸する三角形状の断面を有する領域をフィラー領域としたときに、
前記フィラー領域のみに複合材料フィラー層が配置されている、
請求項1または2に記載の複合材料製パネル構造体。 - 前記フィラー領域の設計上の体積をフィラー基準体積としたときに、
前記複合材料フィラー層の積層数は、前記フィラー基準体積以上から前記フィラー基準体積の3.0倍以下までの範囲内となる積層数である、
請求項3に記載の複合材料製パネル構造体。 - 前記強化繊維は、連続繊維および切込み入り連続繊維の少なくとも一方である、
請求項1から4のいずれか1項に記載の複合材料製パネル構造体。 - 航空機用、宇宙機用または自動車用である、
請求項1から5のいずれか1項に記載の複合材料製パネル構造体。 - 前記強化繊維が炭素繊維であり、前記マトリクス樹脂が熱硬化性樹脂または熱可塑性樹脂である、
請求項1から6のいずれか1項に記載の複合材料製パネル構造体。 - 基板部と、基板部に対して立設するリブとを含み、強化繊維およびマトリクス樹脂を含有する複合材料製のパネル構造体を製造する複合材料製パネル構造体の製造方法であって、
前記基板部が必要板厚となる数のプリプレグである基本プライ、および前記基板部のうち前記リブが立設するリブ基底部に連続繊維からなるシート状のプリプレグであるダブラプライを積層してプリプレグ積層体を形成し、
前記プリプレグ積層体を成形型によりプレス成形する、
複合材料製パネル構造体の製造方法。 - 前記基本プライと前記ダブラプライとの合計積層数は、前記成形型のキャビティ体積以上から前記キャビティ体積の1.25倍以下までの範囲内となる積層数である、
請求項8に記載の複合材料製パネル構造体の製造方法。 - 前記パネル構造体において、
前記リブおよび前記リブと湾曲してつながり前記基板部の一部を構成する複合材料層を第一面側積層体とし、
前記リブと反対側の前記第一面側積層体表面に配置され、前記基板部を構成する複合材料層を第二面側積層体とし、
前記第一面側積層体と前記第二面側積層体との間に生じる、前記リブに沿って延伸する三角形状の断面を有する領域をフィラー領域としたときに、
前記フィラー領域のみにプリプレグであるフィラープライを積層する、
請求項8または9に記載の複合材料製パネル構造体の製造方法。 - 前記フィラー領域の設計上の体積をフィラー基準体積としたときに、
前記フィラープライの積層数は、前記フィラー基準体積以上から前記フィラー基準体積の3.0倍以下までの範囲内となる積層数である、
請求項10に記載の複合材料製パネル構造体の製造方法。
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JP2014510879A (ja) | 2011-01-24 | 2014-05-01 | ザ・ボーイング・カンパニー | 滑らかなランナウトを持つ一体型補剛材を有する複合構造物およびその作製方法 |
JP2014151648A (ja) | 2013-02-07 | 2014-08-25 | Boeing Co | 短繊維材料を含む空隙充填材を有する複合構造を作製する方法及びシステム |
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JP2014510879A (ja) | 2011-01-24 | 2014-05-01 | ザ・ボーイング・カンパニー | 滑らかなランナウトを持つ一体型補剛材を有する複合構造物およびその作製方法 |
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