JPH06117980A - Method and device for holding specimen in tensile test - Google Patents

Method and device for holding specimen in tensile test

Info

Publication number
JPH06117980A
JPH06117980A JP26363392A JP26363392A JPH06117980A JP H06117980 A JPH06117980 A JP H06117980A JP 26363392 A JP26363392 A JP 26363392A JP 26363392 A JP26363392 A JP 26363392A JP H06117980 A JPH06117980 A JP H06117980A
Authority
JP
Japan
Prior art keywords
test piece
test
gripping
face members
holding
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.)
Granted
Application number
JP26363392A
Other languages
Japanese (ja)
Other versions
JP3295697B2 (en
Inventor
Naohiko Inaguma
尚彦 稲熊
Chiaki Yahagi
千秋 矢作
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.)
ORIENTETSUKU KK
Sumitomo Chemical Engineering Co Ltd
Original Assignee
ORIENTETSUKU KK
Sumitomo Chemical Engineering Co Ltd
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 ORIENTETSUKU KK, Sumitomo Chemical Engineering Co Ltd filed Critical ORIENTETSUKU KK
Priority to JP26363392A priority Critical patent/JP3295697B2/en
Publication of JPH06117980A publication Critical patent/JPH06117980A/en
Application granted granted Critical
Publication of JP3295697B2 publication Critical patent/JP3295697B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To obtain a method and device for holding a specimen which can perform tensile test without plane grinding treatment even if there are shrinkage in the specimen. CONSTITUTION:The width of face members 15a and 15b of a specimen holding device 10 is narrower than that of a holding part 6 of a specimen to be held. When the holding part of a specimen with any shrinkage is held between the face members 15a and 15b, the face members are laid out inside the holding part, thus preventing the face members from crushing a projecting part 19 formed at the side edge part of the holding part and local stress from being generated. Since the local stress becomes a starting point for rupture, the rupture can be suppressed at the holding part by preventing generation of the local stress.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、樹脂材料の引張り特性
を測定するための引張り試験機に関し、特に、樹脂製の
試験片を引っ張る際に、試験片の把持部分での破断を防
止するための試験片把持方法及び装置に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tensile tester for measuring the tensile properties of resin materials, and more particularly, to prevent breakage at the grip portion of the test piece when pulling the resin test piece. The present invention relates to a test piece holding method and device.

【0002】[0002]

【従来の技術】図4は従来一般の引張り試験機を概略的
に示している。この図において、符号1a,1bは互い
に平行に立設されたフレーム、符号2はこれらのフレー
ム1a,1b間の上部に固定された固定クロスヘッド、
符号3はフレーム1a,1b間で上下移動可能に取り付
けられた可動クロスヘッドである。固定クロスヘッド2
及び可動クロスヘッド3には、それぞれ、ジョーないし
はクランプと一般に称される試験片把持装置10が互い
に対向するように取り付けられている。試験片把持装置
10は間隔調整可能な1対のフェイス部材11a,11
bを有しており、このフェイス部材11a,11b間で
試験片5の把持部分6を把持するようになっている。
2. Description of the Related Art FIG. 4 schematically shows a conventional general tensile tester. In this figure, reference numerals 1a and 1b denote frames standing upright in parallel with each other, reference numeral 2 denotes a fixed crosshead fixed to an upper portion between the frames 1a and 1b,
Reference numeral 3 is a movable crosshead mounted so as to be vertically movable between the frames 1a and 1b. Fixed crosshead 2
A test piece gripping device 10 generally called a jaw or a clamp is attached to each of the movable crossheads 3 so as to face each other. The test piece gripping device 10 includes a pair of face members 11a, 11 with adjustable spacing.
b, and holds the grip portion 6 of the test piece 5 between the face members 11a and 11b.

【0003】このような引張り試験機で用いられる樹脂
製の試験片5は、図5に示すように長尺の平板形状をな
し、その両端の把持部分6は中間部分7よりも幅広とな
っている。
The resin test piece 5 used in such a tensile tester has a long flat plate shape as shown in FIG. 5, and the grip portions 6 at both ends thereof are wider than the intermediate portion 7. There is.

【0004】引張り試験においては、試験片5の両端の
把持部分6を試験片把持装置10のフェイス部材11
a,11b間で挟んだ後、試験片5の中間部分7が破断
するまで、移動クロスヘッド3を徐々に下降させ、引張
り荷重や試験片5の標線8a,8b間の伸び等を測定す
る。
In the tensile test, the grip portions 6 at both ends of the test piece 5 are attached to the face member 11 of the test piece gripping device 10.
After sandwiching between a and 11b, the moving crosshead 3 is gradually lowered until the intermediate portion 7 of the test piece 5 is broken, and the tensile load and the elongation between the marked lines 8a and 8b of the test piece 5 are measured. .

【0005】[0005]

【発明が解決しようとする課題】引張り試験で用いられ
る試験片5は射出成形で造られるのが一般的であるが、
位置による樹脂材料の硬化速度の差から、図6に明示す
るように、側縁部が内側部分よりも突出する現象(引
け)が生ずる。
The test piece 5 used in the tensile test is generally manufactured by injection molding.
Due to the difference in the curing speed of the resin material depending on the position, a phenomenon (shrinkage) occurs in which the side edge portion projects more than the inner portion, as clearly shown in FIG.

【0006】従来の試験片把持装置10は、フェイス部
材11a,11bの幅が試験片5の把持部分6よりも広
いため、このような引けのある試験片5を把持する場
合、フェイス部材11a,11bにより突出側縁部が押
し付けられ、図6のA部に大きな応力が発生することと
なる。また、図7に示すように、フェイス部材11a,
11bとの境界点Bにはせん断応力も生じ、その部分の
側縁部に段差ができ、微小傷を発生させることもある。
そのため、引張り試験時に試験片5を引っ張ると、図5
の符号9で示すように、側縁部、特にフェイス部材11
a,11bとの境界点Bを始点として試験片5の把持部
分6が破断することが多く、かかる場合には試験をやり
直さなければならない。
In the conventional test strip gripping device 10, since the width of the face members 11a and 11b is wider than the grip portion 6 of the test strip 5, when gripping the test strip 5 having such a shrinkage, the face members 11a, 11b are The protruding side edge portion is pressed by 11b, and a large stress is generated in the portion A of FIG. Further, as shown in FIG. 7, the face member 11a,
Shear stress is also generated at the boundary point B with 11b, and a step is formed at the side edge of that portion, which may cause minute scratches.
Therefore, when the test piece 5 is pulled during the tensile test,
As indicated by reference numeral 9 in FIG.
The gripping portion 6 of the test piece 5 often breaks starting from the boundary point B between a and 11b, and in such a case, the test must be redone.

【0007】そこで、従来においては、この突出した側
縁部をヤスリやカッターで削る等の平面研削処理を試験
片5ごとに行うこととしていたが、その作業には手間が
相当にかかるという問題点があった。
[0007] Therefore, in the past, the surface grinding treatment such as sanding the protruding side edge portion with a file or a cutter was performed for each test piece 5, but the work is considerably troublesome. was there.

【0008】本発明はかかる事情に鑑みてなされたもの
であり、引けのある試験片であっても、平面研削処理を
行わずに引張り試験に供することができるようにする試
験片把持方法及び装置を提供することを目的としてい
る。
The present invention has been made in view of the above circumstances, and a method and apparatus for gripping a test piece that enables even a test piece with shrinkage to be subjected to a tensile test without performing a surface grinding process. Is intended to provide.

【0009】[0009]

【課題を解決するための手段】上記目的を達成するため
に、請求項1に記載の発明による試験片把持方法は、平
板状の試験片の両端の把持部分を把持して引っ張ること
により試験片の引張り特性を測定する引張り試験におい
て、試験片の把持部分の側縁部よりも内側の部分を把持
することを特徴としている。
In order to achieve the above object, the method for gripping a test piece according to the invention as defined in claim 1 is a test piece by gripping and gripping the gripping portions at both ends of a flat plate-shaped test piece. In a tensile test for measuring the tensile properties of the test piece, a part inside the side edge part of the grip part of the test piece is gripped.

【0010】また、請求項2に記載の発明は、間隔調整
可能に設けられた1対のフェイス部材間で試験片の把持
部分を把持するようになっている引張り試験機用の試験
片把持装置において、フェイス部材の幅を把持される試
験片の把持部分の幅よりも狭くしたことを特徴としてい
る。
The invention according to claim 2 is a device for gripping a test piece for a tensile testing machine, which grips a gripping portion of a test piece between a pair of face members provided with adjustable spacing. In the above, the width of the face member is narrower than the width of the gripped portion of the gripped test piece.

【0011】この試験片把持装置のフェイス部材は、そ
の角部及び隅部に丸みが付けられるのが好適である。
The face member of this test piece gripping device is preferably rounded at its corners and corners.

【0012】[0012]

【作用】試験片に引けがある場合に、他の部分よりも高
く突出した側縁部を避け、ほぼ平坦な把持部分の内側を
把持することで、局所的に過大な応力の発生を防止する
ことができる。局所的応力は破断の始点となるため、こ
れを防止する形で試験片を把持した場合には、把持部分
で破断する可能性は大幅に減少する。
[Function] When the test piece has a shrinkage, by avoiding the side edge protruding higher than other parts and gripping the inside of the substantially flat gripping part, the occurrence of locally excessive stress is prevented. be able to. Since the local stress is the starting point of fracture, when the test piece is grasped in a manner that prevents this, the possibility of fracture at the grasped portion is greatly reduced.

【0013】また、請求項2に記載の発明は、上記把持
方法を実施するのに適した試験片把持装置である。即
ち、この試験片把持装置のフェイス部材の幅は試験片の
把持部分の幅よりも狭いため、把持部分の側縁部よりも
内側で把持することができる。よって、この試験片把持
装置を用いて引張り試験を行った場合には、試験片の中
間部分で正常に破断する。
The invention according to claim 2 is a test piece gripping apparatus suitable for carrying out the above gripping method. That is, since the width of the face member of this test strip gripping device is narrower than the width of the gripping portion of the test strip, it can be gripped inside the side edge of the gripping portion. Therefore, when a tensile test is performed using this test piece gripping device, the test piece normally breaks in the middle portion.

【0014】更に、試験片把持装置のフェイス部材の角
部及び隅部に丸みを付けた場合には、フェイス部材間で
試験片の把持部分を挟んだ際、フェイス部材の角部又は
隅部で把持部分の表面を傷付けることがなくなる。試験
片表面上の傷は破断の始点となる可能性が高いので、傷
の発生は可能な限り防止することが望ましい。
Further, when the corners and corners of the face member of the test piece gripping device are rounded, when the gripping portion of the test piece is sandwiched between the face members, the corners or corners of the face member are The surface of the gripped portion is not damaged. Since the scratch on the surface of the test piece is likely to be the starting point of fracture, it is desirable to prevent the occurrence of scratches as much as possible.

【0015】[0015]

【実施例】以下、図面と共に本発明の好適な実施例につ
いて詳細に説明する。尚、図中、先に示した従来構成と
同一又は相当部分には同一符号を用いることとする。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the drawings. In the figure, the same reference numerals are used for the same or corresponding portions as those of the conventional configuration shown above.

【0016】図1及び図2は本発明に従って構成された
試験片把持装置10を示している。この試験片把持装置
10は空気圧式であり、図4に示す引張り試験機の各ク
ロスヘッド2,3に従来と同様にして支持パイプ4によ
り取り付けられる。
1 and 2 show a test strip gripping device 10 constructed in accordance with the present invention. This test piece gripping device 10 is of a pneumatic type, and is attached to each of the cross heads 2 and 3 of the tensile tester shown in FIG.

【0017】この試験片把持装置10の構造自体は従来
から知られたものであり、支持パイプ4が連結されるベ
ース部12と、このベース部12から支持パイプ4とは
反対方向に延びる2本のアーム部13a,13bと、各
アーム部13a,13bの先端に横方向に摺動可能に取
り付けられた押圧ロッド14a,14bと、各押圧ロッ
ド14a,14bの先端に取り付けられたフェイス部材
15a,15bとを備えている。ベース部12はシリン
ダ構造となっており、その内部にはピストン16が配置
されている。ピストン16は支持パイプ4から給排送さ
れる圧縮空気によりベース部12内を上下動し、各アー
ム部13a,13bに設けられたカム機構17a,17
bを介して押圧ロッド14a,14bを横方向に摺動さ
せるようになっている。フェイス部材15a,15bは
互いに平行となるように対向配置されており、その間
で、図5に示すような平板状の試験片5の把持部分6を
挟持する。
The structure itself of the test piece gripping device 10 is conventionally known, and includes a base portion 12 to which the support pipe 4 is connected and two pieces extending from the base portion 12 in a direction opposite to the support pipe 4. Arm portions 13a, 13b, pressing rods 14a, 14b horizontally slidably attached to the tips of the arm portions 13a, 13b, and face members 15a attached to the tips of the pressing rods 14a, 14b. 15b and. The base portion 12 has a cylinder structure, and a piston 16 is arranged inside the base portion 12. The piston 16 moves up and down in the base portion 12 by compressed air supplied and discharged from the support pipe 4, and cam mechanisms 17a and 17 provided on the arm portions 13a and 13b.
The pressing rods 14a and 14b are slid laterally via the b. The face members 15a and 15b are arranged so as to be parallel to each other, and the gripping portion 6 of the flat plate-shaped test piece 5 as shown in FIG. 5 is sandwiched therebetween.

【0018】本発明によれば、フェイス部材15a,1
5bの幅(図2の寸法D)は、把持すべき試験片5の把
持部分6の幅(図2の寸法d)よりも狭く、好ましくは
1〜2mm程度、狭くされている。
According to the present invention, the face members 15a, 1
The width of 5b (dimension D in FIG. 2) is narrower than the width (dimension d in FIG. 2) of the grip portion 6 of the test piece 5 to be gripped, preferably about 1 to 2 mm.

【0019】また、フェイス部材15a,15bの押圧
面18a,18b側の角部及び隅部には適当なアールで
丸みが付けられている。
Further, the corners and corners of the face members 15a and 15b on the pressing surfaces 18a and 18b side are rounded with a suitable radius.

【0020】このような構成の試験片把持装置10を用
いて引張り試験を行う場合、まず、当該試験片把持装置
10を引張り試験機の各クロスヘッド2,3(図4参
照)に取り付け、開放状態のフェイス部材15a,15
b間に試験片5の把持部分6を配置する。
When performing a tensile test using the test piece gripping device 10 having such a configuration, first, the test piece gripping device 10 is attached to each crosshead 2 or 3 (see FIG. 4) of the tensile tester and opened. State face members 15a, 15
The grip portion 6 of the test piece 5 is arranged between b.

【0021】次いで、圧縮空気供給源(図示しない)か
らフレーム1a,1b、クロスヘッド2,3及びパイプ
4を通して圧縮空気を送り込み、フェイス部材15a,
15bを互いに向かって移動させ、試験片5の把持部分
6をフェイス部材15a,15b間で所定圧力で挟持す
る。この際、試験片5が引けのあるものである場合、図
3に明示するように、フェイス部材15a,15bの押
圧面18a,18bが試験片5の把持部分6の側縁部に
形成された突出部分19よりも内側に配置されるように
する。
Next, compressed air is sent from a compressed air supply source (not shown) through the frames 1a and 1b, the cross heads 2 and 3 and the pipe 4, and the face member 15a,
15b are moved toward each other, and the grip portion 6 of the test piece 5 is clamped between the face members 15a and 15b at a predetermined pressure. At this time, when the test piece 5 has a shrinkage, as clearly shown in FIG. 3, the pressing surfaces 18a and 18b of the face members 15a and 15b are formed on the side edge portions of the grip portion 6 of the test piece 5. It is arranged inside the protruding portion 19.

【0022】図3に示す位置関係においては、フェイス
部材15a,15bの押圧面18a,18bのほぼ全面
が試験片5の把持部分6の内側の平坦部分を一様に押し
当てられるので、引けのある試験片5であっても、側縁
部の突出部分19をフェイス部材15a,15bが押し
潰すことはない。従って、試験片5の把持部分6に局所
的な応力は発生せず、把持部分6に均等な応力が作用す
る。
In the positional relationship shown in FIG. 3, since almost the entire pressing surfaces 18a, 18b of the face members 15a, 15b are uniformly pressed against the inner flat portion of the grip portion 6 of the test piece 5, there is no shrinkage. Even with a certain test piece 5, the face members 15a and 15b do not crush the protruding portion 19 of the side edge portion. Therefore, no local stress is generated in the grip portion 6 of the test piece 5, and a uniform stress acts on the grip portion 6.

【0023】また、フェイス部材15a,15bの角部
及び隅部に丸みが付けられているため、フェイス部材1
5a,15bの縁部が試験片5の把持部分6に及ぼす力
は分散される。従って、フェイス部材15a,15bに
よるせん断応力も小さなものとなり、試験片5を傷付け
ることも少なくなる。
Further, since the corners and corners of the face members 15a and 15b are rounded, the face member 1
The force exerted by the edges of 5a and 15b on the grip portion 6 of the test piece 5 is dispersed. Therefore, the shear stress by the face members 15a and 15b is also small, and the test piece 5 is less likely to be damaged.

【0024】このようにフェイス部材15a,15bの
幅を従来のフェイス部材11a,11bよりも狭くする
ことで、試験片5の把持部分6を挟持した際の局所的応
力及び傷の発生を防止することができ、その結果とし
て、引張り試験時の把持部分6での破断を防止すること
ができる。
By making the widths of the face members 15a and 15b narrower than those of the conventional face members 11a and 11b, it is possible to prevent the occurrence of local stress and scratch when the grip portion 6 of the test piece 5 is clamped. As a result, it is possible to prevent breakage at the grip portion 6 during the tensile test.

【0025】次の表は、AS樹脂から造られた引けのあ
る試験片に対して行った引張り試験の結果を示すもので
ある。試験片(1)〜(3)は従来の幅の広いフェイス
部材11a,11bを用いて試験が行われ、試験片
(4)〜(6)には本発明による幅の狭いフェイス部材
15a,15bが用いられた。
The following table shows the results of tensile tests performed on shrinkable test specimens made from AS resin. The test pieces (1) to (3) are tested using the conventional wide face members 11a and 11b, and the test pieces (4) to (6) are narrow face members 15a and 15b according to the present invention. Was used.

【0026】[0026]

【表1】 [Table 1]

【0027】この表から理解されるように、従来の幅の
広いフェイス部材11a,11bを用いた場合には、2
本の試験片(1),(3)が把持部分で破断し、また、
残る試験片(2)も、微小傷の存在等の何らかの原因に
より標線上で破断したため、正確な測定結果が得られな
かった。
As can be seen from this table, when the conventional wide face members 11a and 11b are used, it is 2
The test pieces (1) and (3) of the book broke at the grip portion, and
The remaining test piece (2) also broke on the marked line due to some cause such as the presence of minute scratches, so that an accurate measurement result could not be obtained.

【0028】一方、本発明に従った場合、全ての試験片
(4)〜(6)について、破断が中間部分7の標線8
a,8bの間で生じた。また、その測定結果もほぼ一定
となり、引張り試験が正常に行われたことが判る。
On the other hand, according to the present invention, all the test pieces (4) to (6) are broken at the marked line 8 of the intermediate portion 7.
It occurred between a and 8b. In addition, the measurement results are almost constant, indicating that the tensile test was performed normally.

【0029】尚、本発明は、試験片5の把持部分6の側
縁部に形成された突出部分19で局所的に過大な応力が
発生するのを防止することを特徴としているので、フェ
イス部材15a,15bの幅は、突出部分19を避ける
大きさであるならば、可能な限り広いほうが良い。フェ
イス部材15a,15bの幅が過度に狭い場合には、把
持部分6に生ずる一定面積当たりの応力が大きくなるの
で、望ましくない。
The present invention is characterized in that it prevents local excessive stress from being locally generated at the protruding portion 19 formed on the side edge portion of the grip portion 6 of the test piece 5. It is preferable that the widths of 15a and 15b are as wide as possible, as long as they have a size that avoids the protruding portion 19. If the widths of the face members 15a and 15b are too narrow, the stress per unit area generated in the grip portion 6 becomes large, which is not desirable.

【0030】また、上記実施例では空気圧式の試験片把
持装置10に本発明を適用しているが、例えばねじ式等
の他の型式の試験片把持装置にも本発明は適用可能であ
る。
Further, although the present invention is applied to the pneumatic test piece gripping device 10 in the above-mentioned embodiment, the present invention is also applicable to other types of test piece gripping devices such as screw type.

【0031】更に、試験片5の形状はJIS等で定めら
れているが、把持部分6の幅については数種類あるた
め、それぞれに対応すべく、フェイス部材15a,15
bは交換可能とするのが好適である。
Further, although the shape of the test piece 5 is defined by JIS or the like, there are several kinds of widths of the grip portion 6, so that the face members 15a, 15 can be adapted to each of them.
It is preferred that b is replaceable.

【0032】[0032]

【発明の効果】以上説明した通り、本発明によれば、引
けのある試験片をそのまま引張り試験にかけても、試験
片の把持部分で破断することは殆どなく、正確な試験を
行うことができる。従って、従来においては必要であっ
たカッター等を用いての平面研削処理は不要となり、試
験作業を迅速に行うことができる。これは、現場におい
て引張り試験の結果を見ながら樹脂の配合を調整する場
合に、引張り試験による待ち時間が減少するので有効と
なる。
As described above, according to the present invention, even if a shrinkable test piece is subjected to a tensile test as it is, there is almost no breakage at the grip portion of the test piece, and an accurate test can be performed. Therefore, the surface grinding process using a cutter or the like, which has been necessary in the past, becomes unnecessary, and the test work can be performed quickly. This is effective because the waiting time due to the tensile test is reduced when the resin composition is adjusted while observing the results of the tensile test on site.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による試験片把持装置の断面図である。FIG. 1 is a sectional view of a test piece gripping device according to the present invention.

【図2】図1のII−II線に沿っての断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.

【図3】本発明による試験片把持装置のフェイス部材間
で試験片を把持した際の状態を概略的に示す水平断面図
である。
FIG. 3 is a horizontal sectional view schematically showing a state where a test piece is held between face members of the test piece holding device according to the present invention.

【図4】本発明による試験片把持装置を取り付けること
のできる一般的な引張り試験機を示す正面図である。
FIG. 4 is a front view showing a general tensile tester to which a test piece gripping device according to the present invention can be attached.

【図5】引張り試験で用いられる試験片の形状を示す正
面図である。
FIG. 5 is a front view showing the shape of a test piece used in a tensile test.

【図6】引けのある試験片の把持部分を概略的に示す、
図5のVI−VI線に沿っての断面図である。
FIG. 6 schematically shows a gripping portion of a shrinkable test piece,
6 is a cross-sectional view taken along the line VI-VI of FIG. 5.

【図7】引けのある試験片を従来の試験片把持装置で把
持した状態を示す概略図である。
FIG. 7 is a schematic diagram showing a state where a test piece having a shrinkage is gripped by a conventional test piece gripping device.

【符号の説明】[Explanation of symbols]

5…試験片、6…把持部分、7…中間部分、10…試験
片把持装置、12…ベース部、13a,13b…アーム
部、14a,14b…押圧ロッド、15a,15b…フ
ェイス部材、16…ピストン、17a,17b…カム機
構、18a,18b…押圧面、19…突出部分。
5 ... Test piece, 6 ... Gripping part, 7 ... Intermediate part, 10 ... Test piece gripping device, 12 ... Base part, 13a, 13b ... Arm part, 14a, 14b ... Press rod, 15a, 15b ... Face member, 16 ... Piston, 17a, 17b ... Cam mechanism, 18a, 18b ... Pressing surface, 19 ... Projection part.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 平板状の試験片の両端の把持部分を把持
して引っ張ることにより試験片の引張り特性を測定する
引張り試験において、試験片の把持部分の側縁部よりも
内側の部分を把持することを特徴とする引張り試験にお
ける試験片把持方法。
1. In a tensile test for measuring the tensile properties of a test piece by holding and pulling the holding parts at both ends of a flat plate-like test piece, the part inside the side edge of the holding part of the test piece is gripped. A method of gripping a test piece in a tensile test, comprising:
【請求項2】 平板状の試験片の両端の把持部分を把持
して引っ張ることにより試験片の引張り特性を測定する
引張り試験機で用いられる試験片把持装置であって、間
隔調整可能に設けられた1対のフェイス部材間で試験片
の把持部分を把持するようになっている試験片把持装置
において、前記フェイス部材の幅を把持される試験片の
把持部分の幅よりも狭くしたことを特徴とする試験片把
持装置。
2. A test piece holding device used in a tensile tester for measuring the tensile properties of a test piece by holding and pulling the holding parts at both ends of a flat plate-like test piece, the distance being adjustable. In a test strip gripping device for gripping a gripping portion of a test strip between a pair of face members, the width of the face member is narrower than the width of the gripping portion of the test strip to be gripped. The test piece gripping device.
【請求項3】 前記フェイス部材の角部及び隅部に丸み
を付けたことを特徴とする請求項2記載の試験片把持装
置。
3. The test piece gripping device according to claim 2, wherein corners and corners of the face member are rounded.
JP26363392A 1992-10-01 1992-10-01 Specimen gripping method and specimen gripping device in tensile test Expired - Fee Related JP3295697B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26363392A JP3295697B2 (en) 1992-10-01 1992-10-01 Specimen gripping method and specimen gripping device in tensile test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26363392A JP3295697B2 (en) 1992-10-01 1992-10-01 Specimen gripping method and specimen gripping device in tensile test

Publications (2)

Publication Number Publication Date
JPH06117980A true JPH06117980A (en) 1994-04-28
JP3295697B2 JP3295697B2 (en) 2002-06-24

Family

ID=17392215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26363392A Expired - Fee Related JP3295697B2 (en) 1992-10-01 1992-10-01 Specimen gripping method and specimen gripping device in tensile test

Country Status (1)

Country Link
JP (1) JP3295697B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012154871A (en) * 2011-01-28 2012-08-16 Nippon Sharyo Seizo Kaisha Ltd Tension test holder
CN111504787A (en) * 2020-04-27 2020-08-07 西安建筑科技大学 Compression type concrete uniaxial tension test fixture and test method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012154871A (en) * 2011-01-28 2012-08-16 Nippon Sharyo Seizo Kaisha Ltd Tension test holder
CN111504787A (en) * 2020-04-27 2020-08-07 西安建筑科技大学 Compression type concrete uniaxial tension test fixture and test method
CN111504787B (en) * 2020-04-27 2022-10-21 西安建筑科技大学 Compression type concrete uniaxial tension test fixture and test method

Also Published As

Publication number Publication date
JP3295697B2 (en) 2002-06-24

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