JPH0335105B2 - - Google Patents

Info

Publication number
JPH0335105B2
JPH0335105B2 JP56503067A JP50306781A JPH0335105B2 JP H0335105 B2 JPH0335105 B2 JP H0335105B2 JP 56503067 A JP56503067 A JP 56503067A JP 50306781 A JP50306781 A JP 50306781A JP H0335105 B2 JPH0335105 B2 JP H0335105B2
Authority
JP
Japan
Prior art keywords
graphite
reinforced
layer
kevlar
fastening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP56503067A
Other languages
English (en)
Other versions
JPS57501368A (ja
Inventor
Robaato Harorudo Hanmaa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing Co
Original Assignee
Boeing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boeing Co filed Critical Boeing Co
Publication of JPS57501368A publication Critical patent/JPS57501368A/ja
Publication of JPH0335105B2 publication Critical patent/JPH0335105B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/005—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb
    • B29D24/007—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb and a chamfered edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00—Use of elements other than metals as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/024—Honeycomb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C2027/4733—Rotor blades substantially made from particular materials
    • B64C2027/4736—Rotor blades substantially made from particular materials from composite materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/902—High modulus filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1059—Splitting sheet lamina in plane intermediate of faces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/19—Sheets or webs edge spliced or joined
    • Y10T428/192—Sheets or webs coplanar
    • Y10T428/197—Sheets or webs coplanar with noncoplanar reinforcement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y10T428/24331—Composite web or sheet including nonapertured component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)

Description

請求の範囲 １ 別の構造体に接合するための締着具が配され
る締着領域を有するグラフアイト強化複合構造で
あつて、 少なくともその外面がグラフアイト強化層によ
つて形成され、かつ前記グラフアイト強化層の縁
部が前記締着領域に隣接しているグラフアイト強
化複合体と、 前記グラフアイト強化層の縁部に当接し、かつ
前記締着領域内に延在する第１のアラミド繊維強
化層と、 前記グラフアイト強化層と前記第１のアラミド
繊維強化層とが当接する部分を少なくとも覆うよ
うに、前記グラフアイト強化層と前記第１のアラ
ミド繊維強化層とに重ね合わせられてそれらと一
体化しており、かつ前記締着領域内に延在する第
２のアラミド繊維強化層とを備えた、グラフアイ
ト強化複合構造。
背景技術 グラフアイト強化積層構造体はよく知られてい
る。このグラフアイト強化積層構造体は、その構
造体に高い強度対重量比を提供する。この高い強
度対重量比のために、グラフアイト強化積層構造
体は、航空機用の構造体として次第に多く用いら
れつつある。グラフアイト強化積層構造体はグラ
フアイト繊維を有する。しかしながら、グラフア
イト繊維は、アルミニウム構造体からなる航空機
にグラフアイト強化積層構造体が用いられる場合
にある問題を呈する。その問題は、グラフアイト
がアルミニウムに物理的に接触させられたり、あ
るいはそのアルミニウムに電気結合されるとき
に、そのグラフアイトが腐食の原因となることで
ある。
航空機にはアルミニウム製締着具［フアスナー
（fastener）］が幅広く用いられている。このよう
な金属製締着具はアルミニウム構造体において電
気回路を提供、しその電気回路を通じて、グラフ
アイト強化積層構造体を構成するグラフアイト含
有層状体が、航空機を構成するアルミニウム構造
体に電気的に結合させられ得る。これによりグラ
フアイト繊維とアルミニウムとが物理的に接触、
または電気的に結合されるため、グラフアイト強
化積層構造体のグラフアイト繊維が腐食を引起こ
す原因となる。
そこで、この発明の目的は、グラフアイト強化
積層構造体を構成するグラフアイト繊維が腐食の
原因とならないようにグラフアイト層状体が配置
されたグラフアイト強化複合構造を提供すること
である。
発明の開示 この発明に従つたグラフアイト強化複合構造
は、別の構造体に接合するための締着具が配置さ
れる締着領域を有する。このグラフアイト強化複
合構造は、グラフアイト強化複合体と、第１のア
ラミド繊維強化層と、第２のアラミド繊維強化層
とを備える。グラフアイト強化複合体は、少なく
ともその外面がグラフアイト強化層によつて形成
され、かつグラフアイト強化層の縁部が締着領域
に隣接している。第１のアラミド繊維強化層は、
グラフアイト強化層の縁部に当接し、かつ締着領
域内に延在する。第２のアラミド繊維強化層は、
グラフアイト強化層と第１のアラミド繊維強化層
とが当接する部分を少なくとも覆うように、グラ
フアイト強化層と第１のアラミド繊維強化層とに
重ね合せられてそれらと一体化しており、かつ締
着領域内に延在する。
この発明においては、グラフアイト強化層に縁
部は、別の構造体に接合するための締着具が配さ
れる締着領域に隣接している。締着領域内に延在
するアラミド繊維強化層は、グラフアイト強化層
の縁部に当接しているため、そのグラフアイト強
化層が締着領域内に入る前のところで終端してい
る。また、グラフアイト強化層とアラミド繊維強
化層とが当接する部分は、別のアラミド繊維強化
層によつて覆われるとともに重ね合せられて一体
化されている。別のアラミド繊維強化層は締着領
域内に延在している。これにより、締着領域内に
はグラフアイト強化層が配置されていない。この
結果、別の構造体と接合するためのアルミニウム
製締着具が締着領域内に配置されたとしても、そ
のアルミニウム製締着具によつて提供される電気
回路を通じてグラフアイト強化層がアルミニウム
構造体の電気的に結合させられることはない。し
たがつて、グラフアイト強化複合構造のグラフア
イト繊維が腐食を引起す原因となることが効果的
に防止され得る。
【図面の簡単な説明】
第１図は、この発明に従つたグラフアイト強化
複合構造の一実施例を示す斜視図である。
第２図は、この発明によるグラフアイト強化複
合構造の別の実施例を示す斜視図である。
発明を実施するための最良の形態 第１図を参照して、複合構造体１０ははちの巣
状のコア（以下、ハニカムコアと称する）１２を
有する。このハニカムコア１２には、その縁部１
６の近傍１４でテーパ状に形成されており、その
厚みが次第に薄くなつている。このハニカムコア
１２は多くの周知の材料のいずれかで形成されて
もよいが、好ましくはナイロンで形成されるのが
よい。そのハニカムコア１２の縁部１６に隣接し
て、複合構造体１０は締着区域、すなわち接合区
域１８を有している。グラフアイト強化層状体２
０ａはハニカムコア１２の一方側（図においては
上側）を覆つている。このグラフアイト強化層状
体２０ａは締着区域１８に隣接しているが、その
締着区域１８の手前の点２２ａのところで終端し
ている。グラフアイト強化層状体２０ａは周知の
樹脂のいずれかを用いて形成され得るが、好まし
くはエポキシ樹脂が用いられるのがよい。もう１
つのグラフアイト強化層状体２０ｂは、ハニカム
コア１２の他方側（図において下側）を覆つてい
る。このグラフアイト強化層状体２０ｂは締着区
域１８に隣接しているが、その締着区域１８の外
の点２２ｂのところで終端している。これらの点
２２ａおよび２２ｂのところで、アラミド繊維強
化層の代表例としてケブラー強化層状体
（Kevlar reinfoced laminate）２４ａおよび２
４ｂが、それぞれグラフアイト強化層状体２０ａ
および２０ｂに当接している。ここで、「ケブラ
ー」は登録商標である。これらのケブラー強化層
状体２４ａおよび２４ｂは、締着区域すなわち接
合区域１８の内部に延びており、締着区域１８の
一部を構成している。これらのケブラー強化層状
体２４ａ，２４ｂは互いに接合されていてもよ
い。あるいは、第１図に示されるように、これら
のケブラー強化層状体２４ａ，２４ｂが別のケブ
ラー強化層状体２６に接触していてもよい。
１対のケブラー強化層状体２８ａおよび２８ｂ
は、ケブラー強化層状体２４ａ，２４ｂとグラフ
アイト強化層状体２０ａ，２０ｂとの当接部分を
覆うように配置されている、また、この１対のケ
ブラー強化層状体２８ａおよび２８ｂは、締着区
域１８から離れた領域に延びており、グラフアイ
ト強化層状体２０ａ，２０ｂに重ね合せられてい
る。
第１図に示される複合構造体１０を別の構造体
に接合するための締着具が締着区域１８内に設け
られる。この締着具を受入れるための孔３０は、
締着区域１８内に位置する。この孔３０の通され
た締着具によつて複合構造体１０が別の構造体に
接合させられ得る。
第２図は、この発明によるグラフアイト強化複
合構造の別の実施例を示す。第２図を参照して、
この複合構造体はハニカムコア１２ａを備える。
このハニカムコア１２ａには、その縁部１６ａの
近傍１４ａがテーパ状に形成されており、その厚
みが次第に薄くなつている。そのハニカムコア１
２ａの両側（図において上下側）は、ケブラー強
化層状体３２ａ，３２ｂで覆われている。そのケ
ブラー強化層状体３２ａ，３２ｂには樹脂、好ま
しくはエキポシ樹脂が含浸されている。ケブラー
強化層状体３２ａはハニカムコア１２ａの頂部側
に配置されている。また、ケブラー強化層状体３
２ｂは、ハニカムコア１２ａの底部側に配置され
ている。これらのケブラー強化層状体３２ａおよ
び３２ｂの各々は、ハニカムコア１２ａを覆うと
ともに、図において横方向に延びており、接合区
域、すなわち締着区域１８ａの一部を形成してい
る。グラフアイト強化層状体２０ｃはハニカムコ
ア１２ａの区域内のケブラー強化層状体３２ａの
ほとんどを覆つているが、締着区域１８ａに隣接
した位置２２ｃのところで終端している。また、
別のグラフアイト強化層状体２０ｄは、ハニカム
コア１２ａの区域の底部側でケブラー強化層状体
３２ｂのほとんどを覆つているが、締着区域１８
ａに隣接した位置２２ｄのところで終端してい
る。１対のケブラー強化層状体２４ｃおよび２４
ｄは、それぞれ、グラフアイト強化層状体２０ｃ
および２０ｄに当接している。この１対のケブラ
ー強化層状体２４ｃおよび２４ｄは締着区域１８
ａを覆うように延在している。ケブラー強化層状
体２８ｃおよび２８ｄは締着区域１８ａ内に延び
るケブラー強化層状体２４ｃ，２４ｄを覆うよう
に配置されているとともに、締着区域１８ａから
離れて延びるグラフアイト強化層状体２０ａ，２
０ｄに重ね合せられている。
JP56503067A 1980-09-15 1981-09-08 Expired - Lifetime JPH0335105B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/187,247 US4344995A (en) 1980-09-15 1980-09-15 Hybrid composite structures

Publications (2)

Publication Number Publication Date
JPS57501368A JPS57501368A (ja) 1982-08-05
JPH0335105B2 true JPH0335105B2 (ja) 1991-05-27

Family

ID=22688195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56503067A Expired - Lifetime JPH0335105B2 (ja) 1980-09-15 1981-09-08

Country Status (4)

Country Link
US (1) US4344995A (ja)
EP (1) EP0059735B1 (ja)
JP (1) JPH0335105B2 (ja)
WO (1) WO1982000974A1 (ja)

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Also Published As

Publication number Publication date
JPS57501368A (ja) 1982-08-05
EP0059735A4 (en) 1982-12-27
WO1982000974A1 (en) 1982-04-01
US4344995A (en) 1982-08-17
EP0059735A1 (en) 1982-09-15
EP0059735B1 (en) 1985-02-13

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