JPS6316510Y2 - - Google Patents
Info
- Publication number
- JPS6316510Y2 JPS6316510Y2 JP1982137347U JP13734782U JPS6316510Y2 JP S6316510 Y2 JPS6316510 Y2 JP S6316510Y2 JP 1982137347 U JP1982137347 U JP 1982137347U JP 13734782 U JP13734782 U JP 13734782U JP S6316510 Y2 JPS6316510 Y2 JP S6316510Y2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- longitudinal direction
- structural material
- fibers
- respect
- 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
Links
- 239000000835 fiber Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 30
- 239000002657 fibrous material Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 11
- 239000004917 carbon fiber Substances 0.000 description 11
- 238000005452 bending Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
本考案は繊維補強構造材に関するものである。
従来において、金属例えばスチール製の構造材
の代りにFRP製の構造材を使用して軽量化を図
る試みはさかんに行われている。しかしながら、
FRP製構造材を用いた場合、引張り強度等につ
いては金属製のものに代替可能な強度が得られる
としても、曲げ応力に対抗する抗撓性については
金属製のものより大巾に劣つており、該構造材を
梁、腕木などの支持部材等として用いる様な場
合、この点に難点があり、より曲げ応力による撓
みが小さい材料を開発することが要望されてい
た。
本考案はこの様な現状にかんがみ、抗撓性にす
ぐれた繊維補強構造材を提供せんと種々検討せる
結果、とくに一方向の曲げ応力に対しすぐれた対
撓性を有する繊維補強材料を開発し、本考案をな
し得たものである。
すなわち本考案の要旨は、長繊維で補強された
合成樹脂よりなる、長手方向に対する垂直断面が
四角形の外形輪郭を有し、内部が中空の筒状長尺
体にして、対向する一対の筒壁部を補強する繊維
材料の30〜100％が長手方向に対して30〜60゜の角
度になる様に、そして残りの繊維は長手方向に略
平行となる様に配列され、上記一対の筒壁部より
他の部分を補強する繊維材料は長手方向に略平行
になる様に配列されてなることを特徴とする繊維
補強構造材に存する。本考案構造材は上記の通
り、長繊維で補強された合成樹脂より構成される
ものであり、そして長繊維としては従来より合成
樹脂成形体を補強するのに用いられた長繊維が用
いられてよく、例えばガラス繊維、炭素繊維、金
属繊維、ボロン繊維、アラミド繊維等が用いられ
るが、炭素繊維が強度及び軽量性の点から特に好
適である。又、合成樹脂としては、種類に特に制
限されることはなく、どの様な合成樹脂も上記長
繊維が分散されて成形され得るものであれば用い
られ得るが、エポキシ樹脂、ポリエステル樹脂、
フエノール樹脂等熱硬化型の合成樹脂を用いるの
が、成形体中に長繊維を均一に分散させる点で好
ましい。
そして本考案構造材における長繊維の使用量
は、該長繊維の含有率が50〜75容量％となる範囲
で用いるのが通常好ましい。
以下図面により本考案構造材について説明す
る。第１図は本考案構造材の一例を示す断面図で
あり、この様に本考案構造材３は長手方向に対す
る垂直断面が四角形の外形輪郭を有し、内部が中
空になされた筒状長尺体の形状を有するものであ
る。図中１，１′は構造材３における対向する一
対の筒壁部、２，２′は該一対の筒壁部１，１′以
外の部分である。
そして、上記一対の筒壁部１，１′を補強する
長繊維材料のうちの30〜100％が構造材の長手方
向に対して30〜60゜の角度好ましくは略45゜の角度
になる様に配列され、残りの繊維は該長手方向に
略平行となる様に配列されるのである。
なお、本考案においては、上記において、構造
材の長手方向に対して30〜60゜の角度に配列され
る繊維の約半分が長手方向に正の角度になり、残
りの約半分が負の角度となり、互いに交叉する様
に配列されるのが繊維による補強効果を十分発揮
させる上で好ましい。
第２図は、筒壁部１を補強する長繊維の配列の
仕方を示す模型図であり、４は長手方向に対しθ
の角度、４′は長手方向に対し−θの角度で夫々
交叉する様に配列された長繊維、５は長手方向に
略平行に配列された長繊維である。
又、構造材３における上記一対の筒壁部１，
１′以外の部分２，２′の長繊維は該構造材３の長
手方向に略平行になる様に配列されるのである。
上記の如き構造の本考案構造材を製造するには、
第１図に示される一対の筒壁部１，１′及びそれ
以外の部分２，２′を別々に例えばプレス成型法
等により作つておき、これらを組みたてて接合部
を接着剤により強固に接着することにより製造し
てもよく、又は本考案の通りに長繊維を配列させ
た合成樹脂含浸繊維材料を金型内に配置し、これ
を加熱加圧して一体的に成型することにより製造
してもよい。又、本考案構造材における繊維材料
の含有率が50〜75容量％と高い方が強度的にすぐ
れるのであるが、この様に高い繊維含有率のもの
を製造するには、一方向に揃えられた長繊維に硬
化性合成樹脂を含浸させることにより予め用意し
たプリプレグシートを本考案通りの繊維方向とな
る様に積層して用いるのが良い。
本考案の繊維補強構造材は上述の通りの構造の
ものであり、とくに、対向する一対の筒壁部を補
強する繊維材料の方向及び該一対の筒壁部以外の
部分を補強する繊維材料の方向がそれぞれ特定の
方向に規制されたものであるので、該構造材の垂
直断面における上記一対の筒壁面に対し平行方向
にかけられる曲げ応力すなわち第１図の上方又は
下方からかけられる曲げ応力に対しすぐれた抗撓
性を示し、該応力による撓みが従来の繊維補強構
造材に比して非常に少いものである。
従つて、本考案構造材は特定方向からの応力に
よる撓みが少なくかつ軽量であることが要求され
る梁、腕木等の支持部材の用途に用いられて好適
なるものである。
実施例 １〜４
HMタイプの炭素繊維（東邦レーヨン社製）と
エポキシ樹脂よりなり、炭素長繊維が一方向に配
列された炭素繊維プリプレグシートを多数枚積層
し、加熱下でプレス成型により、巾47mm、厚さ４
mm、長さ400mmにして繊維含有率60体積％の板状
部材１，１′及び巾55mm、厚さ４mm、長さ400mmに
して上記と同じ繊維含有率の板状部材２，２′を
用意した。
なお、板状部材１，１′については、炭素繊維
の30％が該部材長手方向に対する角度θが45゜に
なる様に、第２図に示される繊維４，４′の如く
に傾けられそして該30％のうちの半分ずつが互い
に±θの角度で交互する様に配置され、残りの70
％の炭素繊維が第２図の繊維５の如くに上記長手
方向に揃えられたもの（実施例１）、炭素繊維の
50％が同様に、該部材長手方向に対し45゜の角度
に傾けられ、該50％のうちの半分ずつが互いに交
互する様に配置され、残りの50％の炭素繊維が上
記長手方向に揃えられたもの（実施例２）、炭素
繊維の80％が同様に、長手方向に対して45゜に傾
けられて同様に配置され、残りの20％が長手方向
に揃えられたもの（実施例３）、炭素繊維の全て
が長手方向に対して45゜に傾けられて同様に配置
されたもの（実施例４）の４通りを用意した。
そして、上記板状部材１，１′及び２，２′を第
１図の通りに組合せて接着剤で固着して、外面に
おける一辺の長さが55mm、内面における一辺の長
さが47mmにして長さが400mmの断面４角形の筒状
造材料３を４通り用意した。（実施例１〜４）
次に、用意した各構造材の一端から10cmの部分
を固定して水平に保持した状態（長さ300mmの片
持ちはり）で他端の先端に50Kgの荷重をかけ、該
先端における撓み量をダイヤルゲージで測定し
た。その結果は第１表に示される通りであつた。
比較例 １
板状部材１，１′におけるすべての炭素繊維の
方向を該部材の長手方向に揃えること以外は実施
例１と同様にして板状部材１，１′及び２，２′を
作り、以下実施例１と同様にして筒状構造材３を
用意し、該構造材についての撓み量を測定した。
その結果は第１表に示される通りであつた。
比較例 ２
実施例１で用意されたものと同じ寸法の筒状構
造材をスチール（SS41）から作り、これについ
【表】[Detailed Description of the Invention] The present invention relates to a fiber reinforced structural material. In the past, many attempts have been made to reduce weight by using structural members made of FRP instead of structural members made of metal, such as steel. however,
When using FRP structural materials, even if the tensile strength etc. can be obtained as a substitute for metal materials, the resistance to bending stress is significantly inferior to metal materials. When such structural materials are used as supporting members for beams, arms, etc., this is a problem, and there has been a demand for the development of materials that are less susceptible to bending due to bending stress. In view of the current situation, this invention was developed as a result of various studies to provide a fiber-reinforced structural material with excellent flexibility, and as a result, we developed a fiber-reinforced material that has particularly excellent flexibility against bending stress in one direction. , this invention was made possible. In other words, the gist of the present invention is to form a long cylindrical body made of synthetic resin reinforced with long fibers, which has a rectangular external profile in a vertical cross section with respect to the longitudinal direction, and is hollow inside, and has a pair of opposing cylindrical walls. 30 to 100% of the fiber material reinforcing the section is arranged at an angle of 30 to 60 degrees with respect to the longitudinal direction, and the remaining fibers are arranged substantially parallel to the longitudinal direction. The fiber-reinforced structural material is characterized in that fiber materials reinforcing other parts are arranged substantially parallel to the longitudinal direction. As mentioned above, the structural material of the present invention is composed of a synthetic resin reinforced with long fibers, and the long fibers used in the past are the long fibers that have been used to reinforce synthetic resin molded bodies. For example, glass fibers, carbon fibers, metal fibers, boron fibers, aramid fibers, etc. are often used, but carbon fibers are particularly suitable from the viewpoint of strength and lightness. The synthetic resin is not particularly limited in type, and any synthetic resin can be used as long as it can be molded with the long fibers dispersed therein, but examples include epoxy resin, polyester resin,
It is preferable to use a thermosetting synthetic resin such as a phenol resin in order to uniformly disperse the long fibers in the molded article. The amount of long fibers used in the structural material of the present invention is usually preferably within a range where the content of the long fibers is 50 to 75% by volume. The structural material of the present invention will be explained below with reference to the drawings. FIG. 1 is a cross-sectional view showing an example of the structural material of the present invention, and as shown, the structural material 3 of the present invention has a cylindrical long shape with a rectangular external profile in a vertical section to the longitudinal direction and a hollow interior. It has the shape of a body. In the figure, 1 and 1' are a pair of opposing cylindrical wall portions of the structural member 3, and 2 and 2' are portions other than the pair of cylindrical wall portions 1 and 1'. Then, 30 to 100% of the long fiber material reinforcing the pair of cylindrical walls 1 and 1' is formed at an angle of 30 to 60 degrees with respect to the longitudinal direction of the structural material, preferably at an angle of approximately 45 degrees. The remaining fibers are arranged substantially parallel to the longitudinal direction. In addition, in the present invention, in the above, about half of the fibers arranged at an angle of 30 to 60 degrees with respect to the longitudinal direction of the structural material are at a positive angle in the longitudinal direction, and about half are at a negative angle. Therefore, it is preferable that the fibers be arranged so as to cross each other in order to fully exhibit the reinforcing effect of the fibers. FIG. 2 is a model diagram showing the arrangement of long fibers reinforcing the cylinder wall 1, where 4 is θ with respect to the longitudinal direction.
The long fibers 4' are arranged so as to cross each other at an angle of -θ with respect to the longitudinal direction, and the long fibers 5 are arranged substantially parallel to the longitudinal direction. Further, the pair of cylindrical wall portions 1 in the structural member 3,
The long fibers of portions 2 and 2' other than 1' are arranged so as to be substantially parallel to the longitudinal direction of the structural material 3.
To manufacture the structural material of the present invention having the above structure,
The pair of cylindrical wall parts 1, 1' and the other parts 2, 2' shown in Fig. 1 are made separately by, for example, a press molding method, and then assembled and the joints are firmly secured with adhesive. It may be manufactured by adhering to the material, or it may be manufactured by placing a synthetic resin-impregnated fiber material with long fibers arranged in a mold according to the present invention, and molding it integrally by heating and pressurizing it. You may. In addition, the higher the content of fiber material in the structural material of the present invention is between 50 and 75% by volume, the better the strength, but in order to manufacture products with such a high fiber content, it is necessary to align Prepreg sheets prepared in advance by impregnating long fibers with a curable synthetic resin are preferably used by laminating them in the fiber direction according to the present invention. The fiber-reinforced structural material of the present invention has the structure as described above, and in particular, the direction of the fiber material reinforcing a pair of opposing cylindrical walls and the direction of the fiber material reinforcing parts other than the pair of cylindrical walls. Since the directions are each regulated in a specific direction, the bending stress applied in the parallel direction to the pair of cylindrical wall surfaces in the vertical cross section of the structural material, that is, the bending stress applied from above or below in Figure 1. It exhibits excellent flexural strength and deflects much less due to stress than conventional fiber-reinforced structural materials. Therefore, the structural material of the present invention is suitable for use in support members such as beams and cross arms, which are required to be lightweight and have little deflection due to stress from a specific direction. Examples 1 to 4 A large number of carbon fiber prepreg sheets made of HM type carbon fiber (manufactured by Toho Rayon Co., Ltd.) and epoxy resin, in which long carbon fibers are arranged in one direction, are laminated and press-molded under heat to achieve width. 47mm, thickness 4
Prepare plate-like members 1 and 1' with a fiber content of 60% by volume and a length of 400 mm, and plate-like members 2 and 2' with a width of 55 mm, a thickness of 4 mm, and a length of 400 mm and the same fiber content as above. did. Regarding the plate-shaped members 1 and 1', 30% of the carbon fibers are tilted so that the angle θ with respect to the longitudinal direction of the member is 45 degrees, as in the fibers 4 and 4' shown in FIG. Half of the 30% are arranged alternately at an angle of ±θ, and the remaining 70%
% of carbon fibers are aligned in the longitudinal direction as in fiber 5 in FIG. 2 (Example 1),
50% are similarly inclined at an angle of 45° with respect to the longitudinal direction of the member, halves of the 50% are arranged alternating with each other, and the remaining 50% of carbon fibers are aligned in the longitudinal direction. (Example 2), 80% of the carbon fibers were similarly arranged at an angle of 45° to the longitudinal direction, and the remaining 20% were aligned longitudinally (Example 3). ), and one in which all the carbon fibers were arranged in the same manner at an angle of 45 degrees with respect to the longitudinal direction (Example 4) were prepared. Then, the plate members 1, 1' and 2, 2' were assembled as shown in Figure 1 and fixed with adhesive, so that the length of one side on the outer surface was 55 mm and the length of one side on the inner surface was 47 mm. Four types of cylindrical building materials 3 with a rectangular cross section and a length of 400 mm were prepared. (Examples 1 to 4) Next, a 10 cm portion from one end of each of the prepared structural members was fixed and held horizontally (a cantilever beam with a length of 300 mm), and a load of 50 kg was applied to the tip of the other end. The amount of deflection at the tip was measured using a dial gauge. The results were as shown in Table 1. Comparative Example 1 Plate members 1, 1' and 2, 2' were made in the same manner as in Example 1 except that the directions of all the carbon fibers in the plate members 1, 1' were aligned in the longitudinal direction of the members, Thereafter, a cylindrical structural material 3 was prepared in the same manner as in Example 1, and the amount of deflection of the structural material was measured.
The results were as shown in Table 1. Comparative Example 2 A cylindrical structural member with the same dimensions as that prepared in Example 1 was made from steel (SS41), and the [Table]
第１図は本考案構造材の一例を示す断面図、第
２図は第１図の筒壁部１における長繊維の配列の
仕方を示す模型図である。
１，１′……対向する一対の筒壁部、２，２′…
…他の部分、３……構造材、４，４′，５……繊
維。
FIG. 1 is a sectional view showing an example of the structural material of the present invention, and FIG. 2 is a model diagram showing how the long fibers are arranged in the cylindrical wall portion 1 of FIG. 1. 1, 1'... A pair of opposing cylinder wall parts, 2, 2'...
...Other parts, 3... Structural material, 4, 4', 5... Fiber.
Claims (1)
方向に対する垂直断面が四角形の外形輪郭を有
し、内部が中空の筒状長尺体にして、対向する
一対の筒壁部を補強する繊維材料の30〜100％
が長手方向に対し30〜60゜の角度になる様に、
そして残りの繊維は長手方向に略平行となる様
に配列され、上記一対の筒壁部より他の部分を
補強する繊維材料は長手方向に略平行になる様
に配列されてなることを特徴とする繊維補強構
造材。 ２ 長手方向に対し30〜60゜の角度に配列される
繊維材料の半分が同じ方向に、残りの半分が上
記方向に交叉するよう配列されたものである第
１項又は第２項記載の繊維補強構造材。 ３ 合成樹脂が熱硬化性樹脂である第１項、第２
項又は第３項記載の繊維補強構造材。 ４ 長繊維が炭素長繊維である第１項、第２項又
は第３項記載の繊維補強構造材。[Claims for Utility Model Registration] 1. A cylindrical elongated body made of synthetic resin reinforced with long fibers and having a rectangular outer profile in a vertical cross-section with respect to the longitudinal direction and a hollow interior. 30-100% of the fiber material reinforcing the cylinder wall
so that it is at an angle of 30 to 60 degrees with respect to the longitudinal direction.
The remaining fibers are arranged substantially parallel to the longitudinal direction, and the fiber material reinforcing the other portions of the pair of cylinder walls is arranged substantially parallel to the longitudinal direction. Fiber-reinforced structural material. 2. The fiber according to item 1 or 2, wherein half of the fiber materials arranged at an angle of 30 to 60 degrees with respect to the longitudinal direction are arranged in the same direction and the other half are arranged in a manner that intersects the above direction. Reinforced structural material. 3 Items 1 and 2 where the synthetic resin is a thermosetting resin
Fiber-reinforced structural material according to item 1 or 3. 4. The fiber-reinforced structural material according to item 1, 2, or 3, wherein the long fibers are carbon long fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13734782U JPS5941529U (en) | 1982-09-09 | 1982-09-09 | Fiber reinforced structural material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13734782U JPS5941529U (en) | 1982-09-09 | 1982-09-09 | Fiber reinforced structural material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5941529U JPS5941529U (en) | 1984-03-17 |
| JPS6316510Y2 true JPS6316510Y2 (en) | 1988-05-11 |
Family
ID=30308531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13734782U Granted JPS5941529U (en) | 1982-09-09 | 1982-09-09 | Fiber reinforced structural material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5941529U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7230499B2 (en) * | 2018-12-27 | 2023-03-01 | 東レ株式会社 | laminate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435781B2 (en) * | 1974-10-16 | 1979-11-05 | ||
| JPS5720896A (en) * | 1980-07-11 | 1982-02-03 | Hochiki Co | Concentrated monitoring device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632559Y2 (en) * | 1977-04-14 | 1981-08-03 | ||
| JPS5435781U (en) * | 1977-08-15 | 1979-03-08 |
-
1982
- 1982-09-09 JP JP13734782U patent/JPS5941529U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435781B2 (en) * | 1974-10-16 | 1979-11-05 | ||
| JPS5720896A (en) * | 1980-07-11 | 1982-02-03 | Hochiki Co | Concentrated monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5941529U (en) | 1984-03-17 |
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