JPH0441295B2 - - Google Patents
Info
- Publication number
- JPH0441295B2 JPH0441295B2 JP15183783A JP15183783A JPH0441295B2 JP H0441295 B2 JPH0441295 B2 JP H0441295B2 JP 15183783 A JP15183783 A JP 15183783A JP 15183783 A JP15183783 A JP 15183783A JP H0441295 B2 JPH0441295 B2 JP H0441295B2
- Authority
- JP
- Japan
- Prior art keywords
- bending
- test piece
- fulcrum
- test
- members
- 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
- 238000005452 bending Methods 0.000 claims description 94
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
この発明は、試験片に曲げ荷重を加え、曲げ試
験する曲げ試験装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bending test device that applies a bending load to a test piece and performs a bending test.
(ロ) 従来技術
試験片を曲げ試験するとき、一対の曲げ支点部
材を有する曲げ試験装置が一般に使用されてい
る。曲げ試験するには、試験片を一対の曲げ支点
部材間にかけ渡し、試験片に曲げ荷重を加えれば
よい。これによつて、試験片を各曲げ支点部材間
で変形させ、曲げ試験することができる。この種
の曲げ試験装置において、従来は試験片の両端を
各曲げ支点部材に変位可能に係合させていた。試
験片が変形するとき、その両端は各曲げ支点部材
に対し相対的に変位する。これによつて試験片の
変形が吸収されるようにしていたものである。し
かしながら、試験片の両端が各曲げ支点部材に対
し相対的に変位すると、曲げ支点部材間の試験片
のスパンが変化する。さらに、試験片と曲げ支点
部材間の摩擦によつて試験片に横方向荷重が加え
られるのは避けられない。このため、試験片を正
確に曲げ試験することができないという問題があ
つた。(b) Prior Art When bending test specimens, a bending test device having a pair of bending support members is generally used. To conduct a bending test, a test piece may be passed between a pair of bending support members, and a bending load may be applied to the test piece. Thereby, the test piece can be deformed between the respective bending fulcrum members and a bending test can be performed. In this type of bending test device, conventionally both ends of a test piece were movably engaged with respective bending fulcrum members. When the test piece deforms, its ends are displaced relative to each bending fulcrum member. This allowed the deformation of the test piece to be absorbed. However, when both ends of the test piece are displaced relative to each bending support member, the span of the test piece between the bending support members changes. Additionally, friction between the specimen and the bending fulcrum member inevitably imposes lateral loads on the specimen. For this reason, there was a problem that the test piece could not be accurately subjected to a bending test.
(ハ) 目的
したがつて、この発明は、曲げ試験装置におい
て、試験片が変形しても曲げ支点部材間の試験片
のスパンが変化せずに、試験片に横方向荷重が加
えられず、試験片を正確に曲げ試験することがで
きるようにすべくなされたものである。(C) Purpose Therefore, the present invention provides a bending test device in which the span of the test piece between the bending support members does not change even if the test piece is deformed, and no lateral load is applied to the test piece. This was done to enable accurate bending tests on test pieces.
(ニ) 構成
この発明は、試験片を一対の曲げ支点部材間に
かけ渡し、各曲げ支点部材の反対側から試験片の
両端に係合させた一対の係合部材を各曲げ支点部
材に連結し、試験片の両端を各曲げ支点部材と係
合部材間に挾みつけ、固定する。さらに、各曲げ
支点部材と係合部材を支点本体に装備した一対の
アーム組立体によつて支持する。そして、支点本
体に対し各アーム組立体を曲げ支点部材と平行の
軸芯のまわりに揺動運動可能に案内し、各アーム
組立体に対し各曲げ支点部材および係合部材を曲
げ支点部材と平行の軸芯のまわりに揺動運動可能
に案内したことを特徴とするものである。(d) Structure This invention spans a test piece between a pair of bending support members, and connects a pair of engaging members to each bending support member, which are engaged with both ends of the test piece from opposite sides of each bending support member. , both ends of the test piece are clamped between each bending fulcrum member and the engagement member and fixed. Further, each bending fulcrum member and the engagement member are supported by a pair of arm assemblies provided on the fulcrum body. Then, each arm assembly is guided relative to the fulcrum body so as to be able to swing around an axis parallel to the bending fulcrum member, and each bending fulcrum member and engagement member are aligned parallel to the bending fulcrum member for each arm assembly. It is characterized by being guided so as to be able to swing around the axis.
(ホ) 実施例
以下、この発明の実施例を図面について説明す
る。(E) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図において、試験片１は一対の曲げ支点部材間
にかけ渡される。この実施例では、一対の曲げ支
点部材として曲げ支点ローラ２Ｌ，２Ｒが使用さ
れ、試験片１の両端は一対のプレート３Ｌ，３Ｒ
を介して各曲げ支点ローラ２Ｌ，２Ｒに係合され
ている。さらに、試験片１の両端に係合させる一
対の係合部材として係合ローラ４Ｌ，４Ｒが使用
され、各係合ローラ４Ｌ，４Ｒは各曲げ試験ロー
ラ２Ｌ，２Ｒの反対側に配置され、一対のプレー
ト５Ｌ，５Ｒを介して試験片１の両端に係合され
ている。第２図に示されているように、各係合ロ
ーラ４Ｌ，４Ｒはそれぞれボルト６Ｌ，６Ｒによ
つて各曲げ支点ローラ２Ｌ，２Ｒに連結され、締
め付けられている。試験片１の両端は各曲げ支点
ローラ２Ｌ，２Ｒと係合ローラ４Ｌ，４Ｒ間に挾
みつけられ、固定されている。 In the figure, a test piece 1 is stretched between a pair of bending fulcrum members. In this example, bending support rollers 2L and 2R are used as a pair of bending support members, and both ends of the test piece 1 are connected to a pair of plates 3L and 3R.
It is engaged with each bending fulcrum roller 2L, 2R via. Further, engagement rollers 4L and 4R are used as a pair of engagement members to be engaged with both ends of the test piece 1, and each engagement roller 4L and 4R is arranged on the opposite side of each bending test roller 2L and 2R, and the It is engaged with both ends of the test piece 1 via the plates 5L and 5R. As shown in FIG. 2, each engagement roller 4L, 4R is connected to each bending fulcrum roller 2L, 2R by a bolt 6L, 6R, respectively, and is tightened. Both ends of the test piece 1 are clamped and fixed between the bending support rollers 2L, 2R and the engagement rollers 4L, 4R.
各曲げ支点ローラ２Ｌ，２Ｒおよび係合ローラ
４Ｌ，４Ｒは支点本体７Ｌ，７Ｒに装備された一
対のアーム組立体８Ｌ，８Ｒによつて支持されて
いる。第５図に示されているように、各アーム組
立体８Ｌ，８Ｒはそれぞれ２本のアームからな
り、支点本体７Ｌ，７Ｒのトラニオン９に連結さ
れ、曲げ支点ローラ２Ｌ，２Ｒと平行な軸芯１０
のまわりに揺動運動可能に案内されている。そし
て、各曲げ支点ローラ２Ｌ，２Ｒのトラニオン１
１が各アーム８Ｌ，８Ｒの先端に連結され、各曲
げ支点ローラ２Ｌ，２Ｒおよび係合ローラ４Ｌ，
４Ｒは曲げ支点ローラ２Ｌ，２Ｒと平行な軸芯１
２のまわりに揺動運動可能に案内されている。 Each of the bending fulcrum rollers 2L, 2R and the engaging rollers 4L, 4R are supported by a pair of arm assemblies 8L, 8R mounted on the fulcrum bodies 7L, 7R. As shown in FIG. 5, each arm assembly 8L, 8R consists of two arms, is connected to the trunnion 9 of the fulcrum body 7L, 7R, and has an axis parallel to the bending fulcrum rollers 2L, 2R. 10
is guided in a swinging movement around the Then, the trunnion 1 of each bending fulcrum roller 2L, 2R
1 is connected to the tip of each arm 8L, 8R, and each bending fulcrum roller 2L, 2R and engagement roller 4L,
4R is the axis 1 parallel to the bending fulcrum rollers 2L and 2R.
2 in a swinging movement.
さらに、試験片１に曲げ荷重を与えるため、一
対の曲げポンチ１３Ｈ，１３Ｌが使用されてい
る。各曲げポンチ１３Ｈ，１３Ｌは反対側から直
接試験片１の中央に係合され、ボルト１４によつ
て連結され、締め付けられている。試験片１の中
央は各曲げポンチ１３Ｈ，１３Ｌ間に挾まれ、固
定されている。そして、第６図に示されているよ
うに、上側の曲げポンチ１３Ｈのトラニオン１５
が曲げ荷重負荷ロツド１６に連結され、各曲げポ
ンチ１３Ｈ，１３Ｌはそれと平行な軸芯１７のま
わりに揺動運動可能に案内されている。 Furthermore, in order to apply a bending load to the test piece 1, a pair of bending punches 13H and 13L are used. Each bending punch 13H, 13L is directly engaged with the center of the test piece 1 from the opposite side, connected by a bolt 14, and tightened. The center of the test piece 1 is sandwiched and fixed between bending punches 13H and 13L. Then, as shown in FIG. 6, the trunnion 15 of the upper bending punch 13H is
is connected to a bending load bearing rod 16, and each bending punch 13H, 13L is guided so as to be able to swing around an axis 17 parallel to the bending punch 13H, 13L.
前記のように構成された曲げ試験装置におい
て、試験片１を曲げ試験するには、曲げポンチ１
３Ｈ，１３Ｌによつて試験片１に曲げ荷重を加え
ればよい。その反力は化曲げ支点ローラ２Ｌ，２
Ｒ、係合ローラ４Ｌ，４Ｒおよび各アーム組立体
８Ｌ，８Ｒによつて支持本体７Ｌ，７Ｒに伝達さ
れる。支点本体７Ｌ，７Ｒは伝達される反力を受
け、これを支持し、試験片１は各曲げ支点ローラ
２Ｌ，２Ｒ間で変形する。 In the bending test apparatus configured as described above, in order to perform a bending test on the test piece 1, a bending punch 1 is used.
A bending load may be applied to the test piece 1 using 3H and 13L. The reaction force is the bending fulcrum roller 2L, 2
R, engagement rollers 4L, 4R and respective arm assemblies 8L, 8R to the support bodies 7L, 7R. The fulcrum bodies 7L, 7R receive and support the transmitted reaction force, and the test piece 1 is deformed between the respective bending fulcrum rollers 2L, 2R.
試験片１が変形すると、それに追随して各アー
ム８Ｌ，８Ｒに対し曲げ支点ローラ２Ｌ，２Ｒお
よび係合ローラ４Ｌ，４Ｒが曲げ支点ローラ２
Ｌ，２Ｒと平行の軸芯１２のまわりを揺動運動す
る。これと同時に、支点本体７Ｌ，７Ｒに対し各
アーム８Ｌ，８Ｒが曲げ支点ローラ２Ｌ，２Ｒと
平行の軸芯１０のまわりを揺動運動する。これに
よつて試験片１の変形が吸収される。したがつ
て、試験片１を支障なく曲げ試験することができ
る。 When the test piece 1 deforms, the bending fulcrum rollers 2L, 2R and the engagement rollers 4L, 4R follow the deformation of the bending fulcrum rollers 2L, 2R for each arm 8L, 8R.
It swings around an axis 12 parallel to L and 2R. At the same time, each arm 8L, 8R swings relative to the fulcrum bodies 7L, 7R around an axis 10 parallel to the bending fulcrum rollers 2L, 2R. This absorbs the deformation of the test piece 1. Therefore, the test piece 1 can be subjected to a bending test without any problems.
この装置は、試験片１の両端が各曲げ支点ロー
ラ２Ｌ，２Ｒと係合ローラ４Ｌ，４Ｒ間に挾みつ
けられ、固定されているため、試験片１が変形し
ても、その両端は各曲げ支点ローラ２Ｌ，２Ｒに
対し相対的に変位しない。したがつて、曲げ支点
ローラ２Ｌ，２Ｒ間の試験片１のスパンは変化し
ない。さらに、各曲げ支点ローラ２Ｌ，２Ｒ、係
合ローラ４Ｌ，４Ｒおよび各アーム８Ｌ，８Ｒが
それぞれ軸芯１０，１２のまわりを揺動運動し、
試験片１の変形は円滑に、かつ完全に吸収され
る。したがつて、試験片１に横方向荷重は加えら
れない。したがつて、試験片１を正確に曲げ試験
することができる。 In this device, both ends of the test piece 1 are clamped and fixed between the bending support rollers 2L, 2R and the engagement rollers 4L, 4R, so even if the test piece 1 is deformed, both ends of the test piece 1 are There is no displacement relative to the fulcrum rollers 2L, 2R. Therefore, the span of the test piece 1 between the bending support rollers 2L and 2R does not change. Furthermore, each bending fulcrum roller 2L, 2R, engagement roller 4L, 4R, and each arm 8L, 8R swing around the axis 10, 12, respectively,
The deformation of the test piece 1 is absorbed smoothly and completely. Therefore, no lateral load is applied to the specimen 1. Therefore, the test piece 1 can be accurately subjected to a bending test.
試験片１が変形するとき、それに追随して各曲
げポンチ１３Ｈ，１３Ｌはそれと平行の軸芯１７
のまわりを揺動運動する。したがつて、曲げポン
チ１３Ｈ，１３Ｌによつて試験片１に横方向荷重
が加えられるおそれもない。 When the test piece 1 deforms, the bending punches 13H and 13L move the axis 17 parallel to it.
oscillates around the Therefore, there is no fear that a lateral load will be applied to the test piece 1 by the bending punches 13H and 13L.
また、この装置は、試験片１が各曲げ支点ロー
ラ２Ｌ，２Ｒと係合ローラ４Ｌ，４Ｒ間に挾みつ
けられ、固定されているため、試験片１に正方向
および逆方向の繰返し荷重を与え、試験片１を正
方向および逆方向に変形させ、疲労試験すること
も可能である。第７図に示すように、試験片１が
正方向および逆方向に変形するとき、各アーム８
Ｌ，８Ｒはその軸芯１０のまわりを往復揺動運動
し、各曲げ支点ローラ２Ｌ，２Ｒおよび係合ロー
ラ４Ｌ，４Ｒはその軸芯１２のまわりを往復揺動
運動する。これによつて試験片１の変形が吸収さ
れる。この場合も、各曲げ支点ローラ２Ｌ，２Ｒ
間の試験片１のスパンは変化せず、試験片１に横
方向荷重は加えられない。 In addition, in this device, the test piece 1 is clamped and fixed between the bending support rollers 2L, 2R and the engagement rollers 4L, 4R, so that repeated loads are applied to the test piece 1 in the forward and reverse directions. It is also possible to perform a fatigue test by deforming the test piece 1 in the forward and reverse directions. As shown in FIG. 7, when the test piece 1 is deformed in the forward and reverse directions, each arm 8
The rollers L and 8R reciprocate and swing around their axis 10, and the bending fulcrum rollers 2L and 2R and the engagement rollers 4L and 4R reciprocate and swing around their axis 12. This absorbs the deformation of the test piece 1. In this case as well, each bending fulcrum roller 2L, 2R
The span of the specimen 1 in between does not change and no lateral load is applied to the specimen 1.
この実施例では、曲げ支点部材および係合部材
として曲げ支点ローラ２Ｌ，２Ｒおよび係合ロー
ラ４Ｌ，４Ｒを使用したものについて説明した
が、その他の形状の曲げ支点部材および係合部材
を使用してもよい。試験片１が変形したとき、そ
れに追随して各曲げ支点部材および係合部材が曲
げ支点部材と平行の軸芯１２のまわりを揺動運動
し、アーム８Ｌ，８Ｒが曲げ支点部材と平行の軸
芯１０のまわりを揺動運動するようにすると、曲
げ支点部材および係合部材の形状に関係なく、試
験片１の変形を吸収することができる。試験片１
のスパンは変化せず、試験片１に横方向荷重は加
えられない。したがつて、試験片１を正確に曲げ
試験することができ、同様の作用効果を得ること
ができる。 In this embodiment, the bending fulcrum rollers 2L, 2R and the engagement rollers 4L, 4R are used as the bending fulcrum member and the engagement member, but bending fulcrum members and engagement members of other shapes may be used. Good too. When the test piece 1 is deformed, each of the bending fulcrum members and the engaging member follow the deformation and swing around the axis 12 parallel to the bending fulcrum member, and the arms 8L and 8R move around the axis parallel to the bending fulcrum member. When the test piece 1 is rocked around the core 10, deformation of the test piece 1 can be absorbed regardless of the shapes of the bending fulcrum member and the engagement member. Test piece 1
The span of is unchanged and no lateral load is applied to specimen 1. Therefore, the test piece 1 can be accurately subjected to a bending test, and similar effects can be obtained.
(ヘ) 効果
以上説明したように、この発明は、試験片に曲
げ荷重が加えられ、試験片が変形しても、曲げ支
点部材間の試験片のスパンが変化せず、試験片に
横方向荷重が加えられず、正確に曲げ試験するこ
とができ、所期の目的を達成することができる。(f) Effects As explained above, in the present invention, even when a bending load is applied to a test piece and the test piece is deformed, the span of the test piece between the bending support members does not change, and the test piece does not change in the lateral direction. No load is applied, bending tests can be performed accurately, and the intended purpose can be achieved.
第１図はこの発明の一実施例を示す正面図、第
２図は第１図の正面断面図、第３図は第１図の曲
げ支点ローラと係合ローラの関係を示す側面図、
第４図は第１図の各曲げポンチの関係を示す側面
図、第５図は第３図の側面断面図、第６図は第４
図の側面断面図、第７図は第１図の各曲げ支点ロ
ーラ、係合ローラおよびアームが揺動運動する状
態を示す説明図、第８図は第１図の各曲げポンチ
が揺動運動する状態を示す説明図である。
１……試験片、２Ｌ，２Ｒ……曲げ支点ロー
ラ、４Ｌ，４Ｒ……係合ローラ、６Ｈ，６Ｒ……
ボルト、７Ｌ，７Ｒ……支点本体、８Ｌ，８Ｒ…
…アーム、１０，１２……軸芯。
FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a front sectional view of FIG. 1, and FIG. 3 is a side view showing the relationship between the bending fulcrum roller and the engagement roller of FIG. 1.
Figure 4 is a side view showing the relationship between the bending punches in Figure 1, Figure 5 is a side sectional view of Figure 3, and Figure 6 is a side view of the bending punches in Figure 1.
FIG. 7 is an explanatory diagram showing a state in which each bending fulcrum roller, engagement roller, and arm in FIG. FIG. 1... Test piece, 2L, 2R... Bending fulcrum roller, 4L, 4R... Engagement roller, 6H, 6R...
Bolt, 7L, 7R...Fulcrum body, 8L, 8R...
...Arm, 10, 12...Axis core.
Claims (1)
前記試験片に曲げ荷重を加え、曲げ試験するよう
にした装置において、前記各曲げ支点部材の反対
側から前記試験片の両端に係合させた一対の係合
部材を前記各曲げ支点部材に連結し、前記試験片
の両端を前記各曲げ支点部材と係合部材間に挾み
つけ、固定するとともに、前記各曲げ支点部材と
係合部材を支点本体に装備した一対のアーム組立
体によつて支持し、前記支点本体に対し前記各ア
ーム組立体を前記支点部材と平行の軸芯のまわり
に揺動運動可能に案内し、前記各アーム組立体に
対し前記各曲げ支点部材および係合部材を前記曲
げ支点部材と平行の軸芯のまわりに揺動運動可能
に支持したことを特徴とする曲げ試験装置。1 Spread the test piece between a pair of bending fulcrum members,
In the apparatus for performing a bending test by applying a bending load to the test piece, a pair of engaging members engaged with both ends of the test piece from opposite sides of each of the bending support members are connected to each of the bending support members. Then, both ends of the test piece are sandwiched and fixed between each of the bending fulcrum members and the engagement member, and each of the bending fulcrum members and the engagement member are supported by a pair of arm assemblies provided on the fulcrum body. each of the arm assemblies is guided relative to the fulcrum body so as to be able to swing around an axis parallel to the fulcrum member, and each of the bending fulcrum members and the engagement member are guided relative to the fulcrum body so as to be able to swing around an axis parallel to the fulcrum member; A bending test device characterized by being supported so as to be able to swing around an axis parallel to a bending fulcrum member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15183783A JPS6042638A (en) | 1983-08-19 | 1983-08-19 | Bending test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15183783A JPS6042638A (en) | 1983-08-19 | 1983-08-19 | Bending test apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6042638A JPS6042638A (en) | 1985-03-06 |
| JPH0441295B2 true JPH0441295B2 (en) | 1992-07-07 |
Family
ID=15527379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15183783A Granted JPS6042638A (en) | 1983-08-19 | 1983-08-19 | Bending test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6042638A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62216678A (en) * | 1986-03-19 | 1987-09-24 | 神鋼電機株式会社 | Vibration screen |
| KR101187638B1 (en) * | 2010-09-29 | 2012-10-09 | 한국전력공사 | Test apparatus for bending deformation of structural members |
| KR102275867B1 (en) * | 2017-09-07 | 2021-07-09 | 주식회사 엘지에너지솔루션 | Apparatus and method of evaluating brittleness of electrodes |
| KR102656783B1 (en) * | 2023-05-12 | 2024-04-16 | 크라이오에이치앤아이(주) | Apparatus for cryogenic test specimens |
-
1983
- 1983-08-19 JP JP15183783A patent/JPS6042638A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6042638A (en) | 1985-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |