JP2002296161A - Multi axial stress load test system - Google Patents
Multi axial stress load test systemInfo
- Publication number
- JP2002296161A JP2002296161A JP2001096397A JP2001096397A JP2002296161A JP 2002296161 A JP2002296161 A JP 2002296161A JP 2001096397 A JP2001096397 A JP 2001096397A JP 2001096397 A JP2001096397 A JP 2001096397A JP 2002296161 A JP2002296161 A JP 2002296161A
- Authority
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- Japan
- Prior art keywords
- test
- jig
- test piece
- piece
- plane
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、試験片に多軸方向
から応力を与えて材料の強度評価を行う多軸応力負荷試
験装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiaxial stress test apparatus for evaluating the strength of a material by applying a stress to a test piece in a multiaxial direction.
【０００２】[0002]
【従来の技術】最近の材料強度評価試験は、試験片に１
軸方向の応力負荷に代えて、例えばＹ軸、Ｚ軸等の２軸
方向または３軸方向から応力を負荷する、いわゆる多軸
応力負荷を行っている。2. Description of the Related Art A recent material strength evaluation test has been carried out on a test piece.
Instead of the axial stress load, a so-called multiaxial stress load in which a stress is applied from a biaxial direction or a triaxial direction such as a Y axis or a Z axis is performed.
【０００３】試験片に多軸応力負荷を与える試験装置に
は、例えば、特開平８−４３２８１号公報、特開平１１
−２５８１３５号公報等数多くの発明が開示されてい
る。A test apparatus for applying a multiaxial stress load to a test piece is disclosed in, for example, Japanese Patent Application Laid-Open No.
A number of inventions have been disclosed, such as Japanese Patent No. 258135.
【０００４】特開平８−４３２８１号公報に開示された
技術は、図６に示すように、チャック１を備えた引張棒
２をＸ軸上、Ｙ軸上にそれぞれ配置し、Ｘ軸上、Ｙ軸上
のそれぞれに配置した４つの引張棒２に複数のレバーア
ーム３ａ，３ｂを介装させて錘４を設け、錘４を負荷す
ることにより引張棒２に加わる荷重を倍加させ、試験片
５の引張試験を行うものである。In the technique disclosed in Japanese Patent Application Laid-Open No. 8-43281, as shown in FIG. 6, a pull rod 2 provided with a chuck 1 is arranged on an X axis and a Y axis, respectively. A weight 4 is provided by interposing a plurality of lever arms 3a and 3b on four tension rods 2 arranged on the respective axes, and the weight applied to the tension rod 2 is doubled by applying the weight 4 to the test piece 5. A tensile test is performed.
【０００５】また、特開平１１−２５８１３５号公報に
開示された技術は、図７に示すように、試験片５６に切
欠き７を設け、試験片６に高周波加熱コイル８を挿通す
るとともに、引張試験駆動装置９およびねじり駆動装置
１０から試験片６に負荷を与えてひずみ速度、ねじり、
引張および圧縮等の多軸負荷試験を行うものである。The technique disclosed in Japanese Patent Application Laid-Open No. H11-258135 discloses a technique in which a notch 7 is provided in a test piece 56, a high-frequency heating coil 8 is inserted through the test piece 6, and a tensile test is performed as shown in FIG. A load is applied to the test piece 6 from the test drive device 9 and the torsion drive device 10 to set the strain rate, torsion,
A multiaxial load test such as tension and compression is performed.
【０００６】また、他の多軸応力試験機では、図８の
（ａ），（ｂ）に示すように、チューブ１１から試験片
１２を切り出し、切り出した試験片１２を湾曲させたま
まボルト１３で維持させ、曲げによるＸ軸、Ｙ軸のそれ
ぞれの方向の応力を計測するものである。In another multiaxial stress tester, as shown in FIGS. 8A and 8B, a test piece 12 is cut out of a tube 11, and a bolt 13 is cut while the cut out test piece 12 is curved. And the stresses in the respective directions of the X axis and the Y axis due to bending are measured.
【０００７】このように、従来の多軸応力負荷試験装置
では、試験片のＺ軸、Ｙ軸、Ｚ軸のそれぞれの応力値等
を計測し、計測した応力値等を設計の際に反映させてい
た。As described above, in the conventional multi-axial stress load test apparatus, the stress values of the Z-axis, the Y-axis, and the Z-axis of the test piece are measured, and the measured stress values and the like are reflected in the design. I was
【０００８】[0008]
【発明が解決しようとする課題】図６や図７で示した従
来の多軸応力負荷試験装置では、試験機が１台であるか
ら、強度テストを行う試験片の数も自ずと限られ、多く
の試験片を用いて一度に多くのデータを記録することが
できない不具合、不都合があった。In the conventional multiaxial stress load test apparatus shown in FIGS. 6 and 7, since there is only one tester, the number of test pieces for performing the strength test is naturally limited, However, there was a problem that a large amount of data could not be recorded at one time using the test piece.
【０００９】また、図８で示した従来の多軸応力負荷試
験装置では、チューブ１１から切り出した試験片１２を
用いるため、チューブ１１の径に対応する負荷が決まっ
てしまい、大小様々な荷重を用いてテストすることがで
きない問題があった。Further, in the conventional multiaxial stress load test apparatus shown in FIG. 8, since the test piece 12 cut out from the tube 11 is used, the load corresponding to the diameter of the tube 11 is determined, and various loads of large and small are applied. There was a problem that could not be tested using.
【００１０】本発明は、このような事情に基づいてなさ
れたもので、一度に多くの試験片を用いてテストをする
ことができ、大小様々な荷重を用いて試験片のテストを
行うことができる多軸応力負荷試験装置を提供すること
を目的とする。The present invention has been made in view of such circumstances, and it is possible to perform a test using many test pieces at a time, and to test the test pieces using various loads, large and small. It is an object of the present invention to provide a multiaxial stress load test device that can perform the test.
【００１１】[0011]
【課題を解決するための手段】本発明に係る多軸応力負
荷試験装置は、請求項１に記載したように、試験片を挟
む一側面に配置した第１試験治具と、前記試験片を挟む
他側面に配置した第２試験治具と、前記第１試験治具お
よび前記第２試験治具から前記試験片のＺＸ面およびＺ
Ｙ面に応力を与えるボルトとを備えたものである。According to a first aspect of the present invention, there is provided a multiaxial stress load test apparatus, comprising: a first test jig disposed on one side of a test piece; A second test jig disposed on the other side to be sandwiched, and a ZX plane and a ZX of the test piece from the first test jig and the second test jig.
And a bolt for applying a stress to the Y surface.
【００１２】また、本発明に係る多軸応力負荷試験装置
は、請求項２に記載したように、第１試験治具は、ＺＸ
面およびＺＹ面に試験片に対し凹面部を備えたものであ
る。Further, in the multiaxial stress load test apparatus according to the present invention, as set forth in claim 2, the first test jig comprises a ZX
The surface and the ZY surface are provided with concave portions for the test piece.
【００１３】また、本発明に係る多軸応力負荷試験装置
は、請求項３に記載したように、第２試験治具は、ＺＸ
面およびＺＹ面に試験片に対し凸面部を備えたものであ
る。[0013] In the multiaxial stress load test apparatus according to the present invention, the second test jig may be a ZX.
The surface and the ZY surface are provided with convex portions for the test piece.
【００１４】また、本発明に係る多軸応力負荷試験装置
は、請求項４に記載したように、試験片は、第１試験治
具に臨む側にすきま形成部材を備えたものである。Further, in the multiaxial stress load test apparatus according to the present invention, the test piece is provided with a gap forming member on the side facing the first test jig.
【００１５】また、本発明に係る多軸応力負荷試験装置
は、請求項５に記載したように、試験片の一側面に配置
した第１試験治具と、前記試験片の他側面に配置した第
２試験治具と、前記第１試験治具と前記第２試験治具と
のそれぞれに螺合し、前記試験片のＺＸ面およびＺＹ面
に応力を与えるねじとを備えたものである。According to a fifth aspect of the present invention, there is provided a multiaxial stress load testing apparatus according to the present invention, wherein a first test jig disposed on one side of a test piece and another side face of the test piece are disposed. A second test jig; and a screw that is screwed to each of the first test jig and the second test jig to apply stress to the ZX plane and the ZY plane of the test piece.
【００１６】また、本発明に係る多軸応力負荷試験装置
は、請求項６に記載したように、試験片は、両側面に当
て板を備えたものである。Further, in the multiaxial stress load test apparatus according to the present invention, as described in claim 6, the test piece is provided with a backing plate on both sides.
【００１７】また、本発明に係る多軸応力負荷試験装置
は、請求項７に記載したように、試験片を挟む一側面に
配置し、中間部分に空間を形成した第１枠板と、前記試
験片を挟む他側面に配置し、中間部分に空間を形成した
第２枠板と、台板に載設し、前記第２枠板の空間を挿通
して前記試験片を支持するブロックと、前記台板および
前記第２枠板に螺合し、前記試験片に応力を与えるボル
トとを備えたものである。Further, according to the present invention, there is provided a multiaxial stress load test apparatus according to claim 7, wherein the first frame plate is disposed on one side of a test piece and a space is formed in an intermediate portion. A second frame plate that is arranged on the other side of the test piece and forms a space in the middle portion, and is mounted on the base plate, and a block that supports the test piece by passing through the space of the second frame plate, And a bolt screwed to the base plate and the second frame plate to apply stress to the test piece.
【００１８】また、本発明に係る多軸応力負荷試験装置
は、請求項８に記載したように、第１枠板および第２枠
板のそれぞれは、空間を四辺形に形成するとともに、前
記四辺形の長片と短片との比を変動させる構成にしたこ
とを特徴とするものである。Further, in the multiaxial stress load test apparatus according to the present invention, each of the first frame plate and the second frame plate forms a space in a quadrilateral shape, and The ratio between the long piece and the short piece of the shape is varied.
【００１９】また、本発明に係る多軸応力負荷試験装置
は、請求項９に記載したように、試験片は、ひずみゲー
ジを備えたものである。In the multiaxial stress load test apparatus according to the present invention, the test piece is provided with a strain gauge.
【００２０】また、本発明に係る多軸応力負荷試験装置
は、請求項１０に記載したように、試験片を挟む一側面
に配置した第１試験治具と、前記試験片を挟む他側面に
配置した第２試験治具と、前記第１試験治具のＺＸ面を
前記試験片に対し、異なる曲率で形成した複数の凹面部
と、前記第１試験治具のＺＹ面を前記試験片に対し、一
つの曲率で形成した凹面部と、前記第２試験治具のＺＸ
面を前記試験片に対し、複数個に形成した凸面部と、前
記第２試験治具のＺＹ面を前記試験片に対し、一つに形
成した凸面部と、前記第１試験治具および前記第２試験
治具から前記試験片のＺＸ面およびＺＹ面に応力を与え
るボルトとを備えたものである。Further, according to a tenth aspect of the present invention, there is provided a multiaxial stress load test apparatus, comprising: a first test jig arranged on one side sandwiching a test piece; The arranged second test jig, the plurality of concave portions formed with different curvatures with respect to the ZX surface of the first test jig with respect to the test piece, and the ZY surface of the first test jig with the test piece. On the other hand, a concave portion formed with one curvature and ZX of the second test jig were used.
A convex surface formed in a plurality of surfaces with respect to the test piece, a convex surface formed in one with a ZY surface of the second test jig with respect to the test piece, the first test jig and the And a bolt for applying a stress from the second test jig to the ZX plane and the ZY plane of the test piece.
【００２１】また、本発明に係る多軸応力負荷試験装置
は、請求項１１に記載したように、試験片を収容する溝
部を備えた固定治具と、前記試験片を前記固定治具に固
定支持するピンと、前記試験片および前記固定治具に引
張応力を与える引張用ボルトと、前記試験片および前記
固定治具に圧縮応力を与える圧縮用ボルトとを備えたも
のである。Further, according to the present invention, there is provided a multi-axial stress load test apparatus, comprising: a fixing jig having a groove for accommodating a test piece; and fixing the test piece to the fixing jig. The test apparatus includes a supporting pin, a tension bolt for applying a tensile stress to the test piece and the fixing jig, and a compression bolt for applying a compressive stress to the test piece and the fixing jig.
【００２２】また、本発明に係る多軸応力負荷試験装置
は、請求項１２に記載したように、固定治具は、第１固
定治具と第２固定治具とに区分けするとともに、引張用
ボルトを前記第１固定治具を介して前記第２固定治具に
螺合させたものである。Further, in the multiaxial stress load test apparatus according to the present invention, the fixing jig is divided into a first fixing jig and a second fixing jig, and a tension jig is used. A bolt is screwed into the second fixing jig via the first fixing jig.
【００２３】また、本発明に係る多軸応力負荷試験装置
は、請求項１３に記載したように、固定治具は、第１固
定治具と第２固定治具とに区分けするとともに、圧縮用
ボルトを前記第２固定治具を介して試験片に螺合させた
ものである。Further, in the multiaxial stress load test apparatus according to the present invention, the fixing jig is divided into a first fixing jig and a second fixing jig, and the fixing jig is used for compression. The bolt is screwed to the test piece via the second fixing jig.
【００２４】また、本発明に係る多軸応力負荷試験装置
は、請求項１４に記載したように、第２固定治具は、溝
部に収容した試験片の間に補助板を充填したものであ
る。Further, in the multiaxial stress load test apparatus according to the present invention, as described in claim 14, the second fixing jig is such that an auxiliary plate is filled between test pieces housed in the groove. .
【００２５】[0025]
【発明の実施の形態】以下、本発明に係る多軸応力負荷
試験装置の実施形態を図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multiaxial stress load test apparatus according to the present invention will be described below with reference to the drawings.
【００２６】図１は、本発明に係る多軸応力負荷試験装
置の第１実施形態を示す概念図である。なお、図中、
（ａ）は、試験治具の平面図、（ｂ）は、（ａ）のＡ−
Ａ矢視方向から切断した切断断面図、（ｃ）は、（ａ）
のＢ−Ｂ矢視方向から切断した切断断面図である。FIG. 1 is a conceptual diagram showing a first embodiment of a multiaxial stress load test apparatus according to the present invention. In the figure,
(A) is a plan view of a test jig, (b) is a view of A- in FIG.
FIG. 3C is a cross-sectional view taken in the direction of the arrow A, and FIG.
FIG. 3 is a cross-sectional view taken along the line BB in FIG.
【００２７】本実施形態に係る多軸応力負荷試験装置
は、ＺＸ面上、ＺＹ面上ともに、頭部側にすきま形成部
材１４を装着した板状の試験片１５と、このすきま形成
部材１４および試験片１５を挟む一側面に凹面部１６に
形成した第１試験治具１７と、その他側面に凸面部１８
に形成した第２試験治具１９とを備えている。The multiaxial stress load test apparatus according to the present embodiment includes a plate-shaped test piece 15 having a gap forming member 14 attached to the head side on both the ZX plane and the ZY plane, A first test jig 17 formed in a concave portion 16 on one side of a test piece 15 and a convex portion 18 on the other side.
And a second test jig 19 formed in the second test jig.
【００２８】また、第１試験治具１７および第２試験治
具１９は、すきま形成部材１４および試験片１５を挟ん
だ後、ボルト２０で固定支持される。The first test jig 17 and the second test jig 19 are fixedly supported by bolts 20 after sandwiching the gap forming member 14 and the test piece 15.
【００２９】このような構成の多軸応力負荷試験装置に
おいて、試験片１５の板厚をｔ、第１試験治具１７の凹
面部１６の曲率をρとし、第２試験治具１９の凸面部１
８の曲率をρとし、試験片１５を曲げたとき、試験片１
５の表面には、ｔ／（２ρ）に相当するひずみが生ずる
ことがわかっている。In the multiaxial stress load test apparatus having such a configuration, the thickness of the test piece 15 is t, the curvature of the concave portion 16 of the first test jig 17 is ρ, and the convex portion of the second test jig 19 is ρ. 1
8 is ρ, and when the test piece 15 is bent, the test piece 1
It is known that a strain corresponding to t / (2ρ) occurs on the surface of No. 5.
【００３０】このため、本実施形態は、凹面部１６を備
えた第１試験治具１７と凸面部１８を備えた第２試験治
具１９とのＺＸ平面上の曲率をρ１、ＺＹ平面上の曲率
をρ ２にそれぞれ加工・成形し、それぞれに生ずる試験
片１５のひずみがｔ／（２ρ １）、ｔ／（２ρ２）にな
るようにする。また、このようなひずみに形成した試験
片１５を用いて応力腐食割れ試験を行うため、第１試験
治具１７と試験片１５の間にすきま形成部１４を挟ん
で、ボルト２０で締め付け、試験片１５の表面に２軸の
曲げ応力を与える。For this reason, in this embodiment, the concave portion 16 is provided.
The second test jig provided with the first test jig 17 and the convex portion 18
Let the curvature on the ZX plane with the tool 19 be ρ1, Curvature on the ZY plane
Is ρ 2Each test is performed by processing and forming
The strain of the piece 15 is t / (2ρ 1), T / (2ρ2)
So that In addition, the test formed for such a strain
In order to perform the stress corrosion cracking test using the piece 15, the first test
The gap forming part 14 is sandwiched between the jig 17 and the test piece 15.
Then, it is tightened with a bolt 20, and a biaxial
Give bending stress.
【００３１】そして、本実施形態は、このような構成の
第１試験治具１７、第２試験治具１９および試験片１５
等をより多く作製し、これらを組み立てて腐食環境中に
セットし、一度に複数の試験片１５に対し、２軸の曲げ
応力を負荷して応力腐食割れ試験を行う。In the present embodiment, the first test jig 17, the second test jig 19, and the test piece 15
And the like are assembled and set in a corrosive environment, and a stress corrosion cracking test is performed by applying biaxial bending stress to a plurality of test pieces 15 at a time.
【００３２】このように、本実施形態は、試験片１５を
挟む試験治具を、凹面部１６を備えた第１試験治具１７
と凸面部１８を備えた第２試験治具１９とに形成し、こ
れら第１試験治具１７および第２試験治具１９を数多く
作製し、数多く作製した第１試験治具１７および第２試
験治具１９を用いて試験片１５を挟んで応力腐食割れ試
験を行うので、異なった曲げ応力の下、一度により多く
の試験を行うことができる。As described above, in this embodiment, the test jig sandwiching the test piece 15 is replaced with the first test jig 17 having the concave portion 16.
And a second test jig 19 having a convex surface portion 18. The first test jig 17 and the second test jig 19 are manufactured in large numbers, and the first test jig 17 and the second test jig manufactured in large numbers are manufactured. Since the stress corrosion cracking test is performed with the test piece 15 interposed therebetween using the jig 19, more tests can be performed at once under different bending stresses.
【００３３】図２は、本発明に係る多軸応力負荷試験装
置の第２実施形態を示す概念図である。なお、図中、
（ａ）は、試験治具の平面図、（ｂ）は、（ａ）のＣ−
Ｃ矢視方向から切断した切断断面図、（ｃ）は、（ａ）
のＤ−Ｄ矢視方向から切断した切断断面図である。FIG. 2 is a conceptual diagram showing a second embodiment of the multiaxial stress load test apparatus according to the present invention. In the figure,
(A) is a plan view of a test jig, (b) is a C-
FIG. 3C is a cross-sectional view taken from the direction of the arrow C. FIG.
It is sectional drawing cut | disconnected from the DD arrow direction of FIG.
【００３４】本実施形態に係る多軸応力負荷試験装置
は、板状の試験片１５を両側から挟む当て板２１ａ，２
１ｂと、各当て板２１ａ，２１ｂの外側に配置された第
１試験治具１７および第２試験治具１９のそれぞれにス
ペーサ２２ａ，２２ｂを介装して挿通し、試験片１５の
頭部側に向って凸状に湾曲面を与える曲率調整用のねじ
２３とを備えている。The multiaxial stress load test apparatus according to the present embodiment includes the contact plates 21a, 21 sandwiching the plate-like test piece 15 from both sides.
1b and the first test jig 17 and the second test jig 19 disposed outside the respective contact plates 21a and 21b with spacers 22a and 22b interposed therebetween, and inserted into the test piece 15 on the head side. And a screw 23 for adjusting the curvature for providing a curved surface in a convex shape toward the lens.
【００３５】なお、第１試験治具１７および第２試験治
具１９は、試験片１５を両側から当て板２１ａ，２１ｂ
で挟み、曲率調整用のねじ２３で支持させた後、ボルト
２０で固定支持する。The first test jig 17 and the second test jig 19 apply the test piece 15 from both sides to the contact plates 21a, 21b.
And supported by a curvature adjusting screw 23, and then fixedly supported by a bolt 20.
【００３６】このような構成の多軸応力負荷試験装置に
おいて、試験片１５の板厚を第１実施形態と同様にｔと
し、曲率調整用のねじ２３の押圧力で試験片１５に湾曲
面を与える曲率をρとするとき、試験片１５の表面に
は、ｔ／（２ρ）に相当するひずみが生ずることがわか
っている。In the multiaxial stress load test apparatus having such a configuration, the thickness of the test piece 15 is set to t as in the first embodiment, and the curved surface is applied to the test piece 15 by the pressing force of the curvature adjusting screw 23. It is known that when the given curvature is ρ, a strain corresponding to t / (2ρ) occurs on the surface of the test piece 15.
【００３７】このため、本実施形態は、湾曲面のＺＸ平
面上の曲率をρ１、湾曲面のＺＹ平面上の曲率をρ２と
設定し、試験片１５を設定した曲率ρ１，ρ２で湾曲面
に形成する際、曲率調整用のねじ２３が第１試験治具１
７から飛び出す量を計算する。この場合、ＺＸ平面上の
曲率調整用のねじ２３の間隔がｄなので、中間位置の曲
率調整用のねじ２３とその隣りの曲率調整用のねじ２３
との飛び出し量の差が√（ρ１ ２−ｄ２）になるように
調整する。また、ＹＺ平面上も同様に、曲率調整用のね
じ２３とその隣りの曲率調整用のねじ２３との飛び出し
量の差が√（ρ ２ ２−ｄ２）になるように調整する。そ
の際、曲率調整用のねじ２３の飛び出し量の差に対する
スペーサ２２ａ，２２ｂを曲率調整用のねじ２３と第１
試験治具１７および第２試験治具１９の間に挟み調整す
る。また、曲率調整用のねじ２３が第１試験治具１７を
挿通する際に行った調整作業と同様に、第２試験治具１
９を挿通する際にもスペーサ２２ａ，２２ｂを挟んで調
整作業を行う。For this reason, in the present embodiment, the ZX flat
Let the curvature on the surface be ρ1, The curvature of the curved surface on the ZY plane is ρ2When
And the curvature ρ at which the test piece 15 is set1, Ρ2With curved surface
When forming the first test jig 1
Calculate the amount that jumps out of 7. In this case, on the ZX plane
Since the distance between the curvature adjusting screws 23 is d, the intermediate position
Screw 23 for curvature adjustment and adjacent screw 23 for curvature adjustment
And the difference of the protrusion amount is √ (ρ1 2-D2)
adjust. Similarly, on the YZ plane, a curvature adjustment
Protrusion between the wedge 23 and the adjacent screw 23 for curvature adjustment
The difference between the quantities is √ (ρ 2 2-D2). So
In this case, the difference between the amount of protrusion of the curvature adjusting screw 23
The spacers 22a and 22b are connected to the curvature adjusting screw 23 and the first
Adjust between the test jig 17 and the second test jig 19
You. In addition, the screw 23 for adjusting the curvature connects the first test jig 17.
Similarly to the adjustment work performed when inserting the second test jig 1
9 when inserting it through the spacers 22a and 22b.
Perform the adjustment work.
【００３８】このような調整作業を行った第１試験治具
１７、第２試験治具１９と試験片１５との間に片あたり
を防ぐため、試験片１５は、両側に比較的強度の低い当
て板２１ａ，２１ｂで挟み、ボルト２０で第１試験治具
１７、第２試験治具１９を固定支持し、試験片１５の表
面に２軸の曲げ応力を与える。In order to prevent the contact between the test piece 15 and the first test jig 17 and the second test jig 19 which have performed such adjustment work, the test piece 15 has relatively low strength on both sides. The first test jig 17 and the second test jig 19 are fixedly supported by bolts 20, sandwiched between the abutment plates 21 a and 21 b, and a biaxial bending stress is applied to the surface of the test piece 15.
【００３９】このように、本実施形態は、試験片１５に
湾曲面を形成させる曲率調整用のねじ２３を挿通する第
１試験治具１７および第２試験治具１９をより多く作製
し、これらをより多く組み立てて高温炉にセットし、一
度に数多くの試験片１５に対してそれぞれ異なった２軸
の曲げ応力を与えて高温応力緩和試験を行うので、異な
った曲げ応力の下、一度により多くの試験を行うことが
できる。As described above, according to the present embodiment, the first test jig 17 and the second test jig 19 through which the screws 23 for adjusting the curvature for forming the curved surface on the test piece 15 are inserted are manufactured more. Are set in a high-temperature furnace and a high-temperature stress relaxation test is performed by applying different biaxial bending stresses to a large number of test pieces 15 at a time. Can be tested.
【００４０】図３は、本発明に係る多軸応力負荷試験装
置の第３実施形態を示す概念図である。なお、図中、
（ａ）は、試験治具の平面図、（ｂ）は、（ａ）のＥ−
Ｅ矢視方向から切断した切断断面図である。FIG. 3 is a conceptual diagram showing a third embodiment of the multiaxial stress load test apparatus according to the present invention. In the figure,
(A) is a plan view of a test jig, (b) is a diagram showing E- in FIG.
FIG. 4 is a cross-sectional view cut in the direction of arrow E.
【００４１】本実施形態に係る多軸応力負荷試験装置
は、台板２４に載設したブロック２５で支持する板状の
試験片１５と、この試験片１５を両側から挟み、中間部
分を四辺形の空間３０ａ，３０ｂに形成した第１枠板２
６および第２枠板２７と、この試験片１５を第１枠板２
６、第２枠板２７およびブロック２５に対して締付調整
する締付調整ボルト２８とを備えている。また、試験片
１５には、ひずみゲージ２９が貼付されている。The multiaxial stress load test apparatus according to the present embodiment has a plate-like test piece 15 supported by a block 25 mounted on a base plate 24, the test piece 15 sandwiched from both sides, and an intermediate portion formed into a quadrilateral. Frame plate 2 formed in spaces 30a and 30b of
6 and the second frame plate 27 and the test piece 15
6, a tightening adjustment bolt 28 for tightening and adjusting the second frame plate 27 and the block 25. Further, a strain gauge 29 is attached to the test piece 15.
【００４２】このような構成の多軸応力負荷試験装置に
おいて、本実施形態は、試験片１５を第１枠板２６およ
び第２枠板２７で挟んで固定し、試験片１５の低部側の
面の中央にひずみゲージ２９を貼付する。In the multiaxial stress load test apparatus having such a configuration, in the present embodiment, the test piece 15 is fixed by sandwiching the test piece 15 between the first frame plate 26 and the second frame plate 27. A strain gauge 29 is attached to the center of the surface.
【００４３】次に、台板２４にブロック２５を載設し、
第１枠板２６、第２枠板２７および試験片１５を締付調
整ボルト２８で固定する。さらに、ひずみゲージ２９の
値を測定、確認しながら締付調整用のボルト２８の増締
めを行い、予め設定しているひずみ値になったとき、締
付調整用のボルト２８の増締めを終了し、試験片１５の
表面に２軸の応力を与える。Next, the block 25 is mounted on the base plate 24,
The first frame plate 26, the second frame plate 27, and the test piece 15 are fixed by tightening adjustment bolts 28. Furthermore, while tightening the bolt 28 for tightening adjustment while measuring and confirming the value of the strain gauge 29, when the strain value reaches a preset value, the tightening of the bolt 28 for tightening adjustment is completed. Then, biaxial stress is applied to the surface of the test piece 15.
【００４４】そして、試験片１５のＸ方向、Ｙ方向のそ
れぞれに発生する応力の成分比を変えるため、別の第１
枠板２６と別の第２枠板２７とのそれぞれに形成した四
辺形の空間３０ａ，３０ｂの長辺ａと短辺ｂの縦横比ａ
／ｂを変え、ひずみゲージ２９の値を測定、確認しなが
ら締付調整用のボルト２８の増締めを行い、予め設定し
ているひずみ値に試験片１５を調整する。In order to change the component ratio of the stress generated in the X direction and the Y direction of the test piece 15, another first
Aspect ratio a of long side a and short side b of quadrangular spaces 30a and 30b formed in frame plate 26 and another second frame plate 27, respectively.
By changing / b, the bolt 28 for tightening adjustment is re-tightened while measuring and confirming the value of the strain gauge 29, and the test piece 15 is adjusted to a preset strain value.
【００４５】このように、本実施形態は、試験片１５の
Ｘ方向、Ｙ方向のそれぞれに異なった応力を与える、四
辺形の空間３０ａ，３０ｂの長辺ａと短辺ｂとを異なら
しめた第１枠板２６、第２枠板２７をより多く作製し、
これらをより多く用いて組み立て、一度に数多くの試験
片１５に対してそれぞれ異なった２軸の応力を与えて応
力腐食割れ試験を行うので、異なった応力の下、一度に
より多くの試験を行うことができる。As described above, in the present embodiment, the long sides a and the short sides b of the quadrangular spaces 30a and 30b that give different stresses in the X direction and the Y direction of the test piece 15 are different. The first frame plate 26 and the second frame plate 27 are manufactured more,
Assembling by using more of them and performing stress corrosion cracking test by applying different biaxial stresses to a large number of test pieces 15 at a time, therefore, performing more tests at once under different stresses Can be.
【００４６】図４は、本発明に係る多軸応力負荷試験装
置の第４実施形態を示す概念図である。なお、図中、
（ａ）は、試験治具の平面図、（ｂ）は、（ａ）のＦ−
Ｆ矢視方向から切断した切断断面図、（ｃ）は、（ａ）
のＧ−Ｇ矢視方向から切断した切断断面図である。FIG. 4 is a conceptual view showing a fourth embodiment of the multiaxial stress load test apparatus according to the present invention. In the figure,
(A) is a plan view of a test jig, and (b) is a F-
FIG. 3C is a cross-sectional view taken from the direction of the arrow F. FIG.
It is sectional drawing cut | disconnected from the GG arrow direction of FIG.
【００４７】本実施形態に係る多軸応力負荷試験装置
は、ＺＸ面上の頭部側にすきま形成部材１４を装着した
板状の試験片１５と、このすきま形成部材１４および試
験片１５を挟む一側面に異なる複数の曲率で連続的に形
成した第１凹面部３１、第２凹面部３２、および第３凹
面部３３を備えた第１試験治具１７と、そのＺＸ面の他
側面に連続的に形成した第１凸面部２４、第２凸面部３
５および第３凸面部３６を備えた第２試験治具１９とで
構成されている。In the multiaxial stress load test apparatus according to the present embodiment, a plate-shaped test piece 15 having a gap forming member 14 mounted on the head side on the ZX plane is sandwiched between the gap forming member 14 and the test piece 15. A first test jig 17 having a first concave portion 31, a second concave portion 32, and a third concave portion 33 formed continuously on the one side with a plurality of different curvatures; First convex portion 24, second convex surface portion 3
5 and the second test jig 19 having the third convex surface portion 36.
【００４８】また、本実施形態に係る多軸応力負荷試験
装置は、ＺＹ面上の第１試験治具１７にすきま形成部材
１４および試験片１５に向って形成した第４凸面部３７
を備えるとともに、ＺＹ面上の第２試験治具１９にすき
ま形成部材１４および試験片１５に向かって形成した第
４凸面部３８を備えている。Further, the multiaxial stress load test apparatus according to the present embodiment has the fourth convex surface portion 37 formed on the first test jig 17 on the ZY plane toward the gap forming member 14 and the test piece 15.
And the fourth test jig 19 on the ZY plane has a fourth convex surface 38 formed toward the gap forming member 14 and the test piece 15.
【００４９】また、第１試験治具１７および第２試験治
具１９は、すきま形成部材１４および試験片１５を挟ん
だ後、ボルト２０で固定支持される。The first test jig 17 and the second test jig 19 are fixedly supported by bolts 20 after sandwiching the gap forming member 14 and the test piece 15.
【００５０】このような構成の多軸応力負荷試験装置に
おいて、本実施形態は、試験片１５の板厚をｔ、ＺＸ面
における第１試験治具１７の第１凹面部３１の曲率をρ
Ａ、第２凹面部３２の曲率をρＢ、第３凹面部３３の曲
率をρＣとし、ＺＹ面における第１試験治具１７の第４
凹面部３７の曲率をρＤとそれぞれ設定し、第１試験治
具１７および第２試験治具１９を固定支持するボルト２
０の増締めを行う。In the multiaxial stress load test apparatus having such a configuration, in this embodiment, the plate thickness of the test piece 15 is t, and the curvature of the first concave portion 31 of the first test jig 17 on the ZX plane is ρ.
A , the curvature of the second concave portion 32 is ρ B , the curvature of the third concave portion 33 is ρ C, and the fourth test fixture 17 on the ZY plane is the fourth test fixture 17.
The curvature of the concave portion 37 is set as ρ D , respectively, and the bolt 2 for fixing and supporting the first test jig 17 and the second test jig 19 is set.
Perform additional tightening of 0.
【００５１】ボルト２０の増締めを行ったＺＸ面におけ
る第１凹面部３１の試験片１５にはｔ／（２ρＡ）、第
２凹面部３２の試験片１５にはｔ／（２ρＢ）、第３凹
面部３３の試験片１５にはｔ／（２ρＣ）、ＺＹ面にお
ける第４凹面部３７の試験片１５にはｔ／（２ρＤ）の
ひずみがそれぞれ発生する。The test piece 15 of the first concave portion 31 on the ZX surface on which the bolt 20 has been retightened is t / (2ρ A ), the test piece 15 of the second concave portion 32 is t / (2ρ B ), t / is the test piece 15 of the third concave portions 33 (2ρ C), the test piece 15 of the fourth concave portion 37 in the ZY plane strain t / (2.rho D) are generated respectively.
【００５２】そして、本実施形態は、このような構成の
第１試験治具１７、第２試験治具１９および試験片１５
等をより多く作製し、これらを腐食環境中にさらし、一
度に複数の試験片１５に対し、応力腐食割れ試験を行
う。In this embodiment, the first test jig 17, the second test jig 19, and the test piece 15 having such a configuration are used.
And the like are exposed to a corrosive environment, and a plurality of test pieces 15 are subjected to a stress corrosion cracking test at a time.
【００５３】このように、本実施形態は、試験片１５を
挟む試験治具を、ＺＸ面において第１凹面部３１、第２
凹面部３２、第３凹面部３３を形成するとともに、ＺＹ
面において第４凹面部３７を形成する第１試験治具１７
と、ＺＸ面において第１凸面部３４、第２凸面部３５、
第３凸面部３６を形成するとともに、ＺＹ面において第
４凸面部３８を形成する第２試験治具１９とで構成し、
これら第１試験治具１７および第２試験治具１９を数多
く作製し、数多く作製した第１試験治具１７および第２
試験治具１９を用いて試験片１５を挟んで応力腐食割れ
試験を行うので、異なった応力値の下、一度により多く
の試験を行うことができる。As described above, in the present embodiment, the test jig sandwiching the test piece 15 is formed by the first concave portion 31 and the second
A concave surface portion 32 and a third concave surface portion 33 are formed, and ZY
Test jig 17 forming fourth concave surface portion 37 on the surface
A first convex portion 34, a second convex portion 35 on the ZX plane,
A second test jig 19 that forms the third convex portion 36 and forms the fourth convex portion 38 on the ZY plane;
The first test jig 17 and the second test jig 19 are manufactured in large numbers, and the first test jig 17 and the second
Since the stress corrosion cracking test is performed using the test jig 19 with the test piece 15 interposed therebetween, more tests can be performed at once under different stress values.
【００５４】図５は、本発明に係る多軸応力負荷試験装
置の第５実施形態を示す概念図である。なお、図中、
（ａ）は、試験治具の平面図、（ｂ）は、（ａ）のＨ−
Ｈ矢視方向から切断した切断断面図である。FIG. 5 is a conceptual diagram showing a fifth embodiment of the multiaxial stress load test apparatus according to the present invention. In the figure,
(A) is a plan view of the test jig, and (b) is an H-
It is sectional drawing cut | disconnected from the H arrow direction.
【００５５】本実施形態に係る多軸応力負荷試験装置
は、溝部３９ａを備えた第１固定治具４０と溝部３９ｂ
を備えた第２固定治具４１とに跨って収容し、ひずみゲ
ージ２９を設けた板状の試験片１５と、第１固定治具４
０および第２固定治具４１のそれぞれに試験片１５を固
定支持するピン４２ａ，４２ｂと、第１固定治具４０に
設けられ、試験片１５に引張応力を与える引張用のボル
ト４３と、第２固定治具４１に設けられ、補助板４４
ａ，４４ｂを介装して試験片１５に圧縮応力を与える圧
縮用のボルト４５とを備えている。The multiaxial stress load test apparatus according to the present embodiment includes a first fixing jig 40 having a groove 39a and a groove 39b.
A plate-like test piece 15 that is housed over a second fixing jig 41 provided with
A pin 42a, 42b for fixing and supporting the test piece 15 on each of the 0 and the second fixing jigs 41, a tension bolt 43 provided on the first fixing jig 40 and applying a tensile stress to the test piece 15; 2 provided on the fixing jig 41,
a and a compression bolt 45 for applying a compressive stress to the test piece 15 through the intermediary of a and 44b.
【００５６】このような構成の多軸応力負荷試験装置に
おいて、本実施形態は、第１固定治具４０および第２固
定治具４１のそれぞれの溝部３９ａ，３９ｂに収容して
ピン４２ａ，４２ｂで固定支持し、第１固定治具４０に
設けた引張用のボルト４３を増締めし、ひずみゲージ２
９のひずみ値を計測しながら試験片１５に引張応力を与
える。In the multiaxial stress load test apparatus having such a configuration, in the present embodiment, the first fixing jig 40 and the second fixing jig 41 are accommodated in the respective groove portions 39a and 39b and the pins 42a and 42b are used. The first fixing jig 40 is fixedly supported, and the tension bolt 43 provided on the first fixing jig 40 is further tightened.
A tensile stress is applied to the test piece 15 while measuring the strain value of No. 9.
【００５７】次に、本実施形態は、試験片１５と第２固
定治具４１の溝部３９ｂとの間に補助板４４ａ，４４ｂ
を充填し、第２固定治具４１に設けた圧縮用のボルト４
５を増締めし、ひずみゲージ２９のひずみ値を計測しな
がら、試験片１５に圧縮応力を与える。Next, in this embodiment, the auxiliary plates 44a and 44b are provided between the test piece 15 and the groove 39b of the second fixing jig 41.
And a compression bolt 4 provided on the second fixing jig 41.
5 is further tightened, and a compressive stress is applied to the test piece 15 while measuring the strain value of the strain gauge 29.
【００５８】その際、試験片１５に予め与えている引張
のひずみ値が変化するため、ひずみゲージ２９の値を計
測・確認しながら引張用ボルト４３と圧縮用ボルト４５
との増締めを調整しつつ、予め定められたひずみ値にな
るよう調整する。At this time, since the tensile strain value previously given to the test piece 15 changes, the tension bolt 43 and the compression bolt 45 are measured and checked while the value of the strain gauge 29 is measured.
And while adjusting the tightening, the strain value is adjusted to a predetermined strain value.
【００５９】そして、増締めの調整が終了すると、試験
片１５を腐食環境中にさらし、応力腐食試験を行う。When the adjustment of the tightening is completed, the test piece 15 is exposed to a corrosive environment, and a stress corrosion test is performed.
【００６０】このように、本実施形態は、試験片１５に
予め引張応力と圧縮応力とを与える第１固定治具４０と
第２固定治具４１をより多く作製し、これらをより多く
用いて組み立て、一度に数多くの試験片１５に対して応
力腐食割れ試験を行うので、異なった圧力の下、一度に
より多くの試験を行うことができる。As described above, in the present embodiment, the first fixing jig 40 and the second fixing jig 41 for applying the tensile stress and the compressive stress to the test piece 15 in advance are manufactured more, and these are used more. Since the stress corrosion cracking test is performed on many test pieces 15 at a time at the time of assembling, more tests can be performed at once under different pressures.
【００６１】[0061]
【発明の効果】以上の説明のとおり、本発明に係る多軸
応力負荷試験装置は、試験片の多軸面に異なる値の応力
を与える試験治具の値を、試験治具をより多く作製して
組み立て、悪い環境の中に試験を設置して応力腐食割れ
等試験を行うので、悪環境の下、一度に多くの試験を行
うことができる。As described above, the multiaxial stress load test apparatus according to the present invention produces more test jigs by applying different values of stress to the multiaxial surface of the test piece. Since the test is set up in a bad environment and the tests such as stress corrosion cracking are performed, many tests can be performed at once in the bad environment.
【図１】本発明に係る多軸応力負荷試験装置の第１実施
形態を示す概念図。FIG. 1 is a conceptual diagram showing a first embodiment of a multiaxial stress load test apparatus according to the present invention.
【図２】本発明に係る多軸応力負荷試験装置の第２実施
形態を示す概念図。FIG. 2 is a conceptual diagram showing a second embodiment of a multiaxial stress load test device according to the present invention.
【図３】本発明に係る多軸応力負荷試験装置の第３実施
形態を示す概念図。FIG. 3 is a conceptual diagram showing a third embodiment of a multiaxial stress load test apparatus according to the present invention.
【図４】本発明に係る多軸応力負荷試験装置の第２実施
形態を示す概念図。FIG. 4 is a conceptual diagram showing a second embodiment of a multiaxial stress load test device according to the present invention.
【図５】本発明に係る多軸応力負荷試験装置の第３実施
形態を示す概念図。FIG. 5 is a conceptual diagram showing a third embodiment of the multiaxial stress load test device according to the present invention.
【図６】従来の多軸応力負荷試験装置を示す概念図。FIG. 6 is a conceptual diagram showing a conventional multiaxial stress load test apparatus.
【図７】従来の別の多軸応力負荷試験装置を示す概念
図。FIG. 7 is a conceptual diagram showing another conventional multiaxial stress load test apparatus.
【図８】従来のさらに別の多軸応力負荷試験装置を示す
概念図で、（ａ）は、チューブから試験片を切り出す
図、（ｂ）は、チューブから切り出した試験片に応力を
与える図。8A and 8B are conceptual diagrams showing another conventional multiaxial stress load test apparatus, in which FIG. 8A is a diagram in which a test piece is cut out of a tube, and FIG. 8B is a diagram in which stress is applied to a test piece cut out of a tube. .
１…チャック，２…引張棒，３ａ，３ｂ…レバーアー
ム，４…錘，５，６…試験片，７…切欠き，８…高周波
加熱コイル，９…引張試験駆動装置，１０…ねじり駆動
装置，１１…チューブ，１２…試験片，１３…ボルト，
１４…すきま形成部材，１５…試験片，１６…凹面部，
１７…第１試験治具，１８…凸面部，１９…第２試験治
具，２０…ボルト，２１ａ，２１ｂ…当て板，２２ａ，
２２ｂ…スペーサ，２３…曲率調整用のねじ，２４…台
板，２５…ブロック，２６…第１枠板，２７…第２枠
板，２８…締付調整ボルト，２９…ひずみゲージ，３０
ａ，３０ｂ…空間，３１…第１凹面部，３２…第２凹面
部，３３…第３凹面部，３４…第１凸面部，３５…第２
凸面部，３６…第３凸面部，３７…第４凹面部，３８…
第４凸面部，３９ａ，３９ｂ…溝部，４０…第１固定治
具，４１…第２固定治具，４２ａ，４２ｂ…ピン，４３
…引張用ボルト，４４ａ，４４ｂ…補助板，４５…圧縮
用ボルト。DESCRIPTION OF SYMBOLS 1 ... Chuck, 2 ... Tension rod, 3a, 3b ... Lever arm, 4 ... Weight, 5, 6 ... Test piece, 7 ... Notch, 8 ... High frequency heating coil, 9 ... Tension test drive, 10 ... Torsion drive , 11 ... tube, 12 ... test piece, 13 ... bolt,
14 ... clearance forming member, 15 ... test piece, 16 ... concave surface part,
17 first test jig, 18 convex part, 19 second test jig, 20 bolt, 21a, 21b contact plate, 22a,
22b: spacer, 23: screw for curvature adjustment, 24: base plate, 25: block, 26: first frame plate, 27: second frame plate, 28: tightening adjustment bolt, 29: strain gauge, 30
a, 30b: space, 31: first concave surface, 32: second concave surface, 33: third concave surface, 34: first convex surface, 35: second
Convex part, 36 ... Third convex part, 37 ... Fourth concave part, 38 ...
Fourth convex surface portion, 39a, 39b groove portion, 40 first fixing jig, 41 second fixing jig, 42a, 42b pin, 43
... tension bolts, 44a, 44b ... auxiliary plates, 45 ... compression bolts.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2G061 AA07 AB01 AB08 CB01 DA01 DA16 EA04 EB04 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2G061 AA07 AB01 AB08 CB01 DA01 DA16 EA04 EB04
Claims (14)
治具と、前記試験片を挟む他側面に配置した第２試験治
具と、前記第１試験治具および前記第２試験治具から前
記試験片のＺＸ面およびＺＹ面に応力を与えるボルトと
を備えたことを特徴とする多軸応力負荷試験装置。1. A first test jig disposed on one side of a test piece, a second test jig disposed on another side of the test piece, and the first test jig and the second test jig. And a bolt for applying a stress to the ZX plane and the ZY plane of the test piece from a tool.
試験片に対し凹面部を備えたことを特徴とする請求項１
記載の多軸応力負荷試験装置。2. The first test jig is provided with concave portions on the ZX plane and the ZY plane with respect to the test piece.
The multiaxial stress load test apparatus according to the above.
試験片に対し凸面部を備えたことを特徴とする請求項１
記載の多軸応力負荷試験装置。3. The test jig according to claim 1, wherein the second test jig has a convex portion on the ZX plane and the ZY plane with respect to the test piece.
The multiaxial stress load test apparatus according to the above.
ま形成部材を備えたことを特徴とする請求項１記載の多
軸応力負荷試験装置。4. The multiaxial stress test apparatus according to claim 1, wherein the test piece has a clearance forming member on a side facing the first test jig.
と、前記試験片の他側面に配置した第２試験治具と、前
記第１試験治具と前記第２試験治具とのそれぞれに螺合
し、前記試験片のＺＸ面およびＺＹ面に応力を与えるね
じとを備えたことを特徴とする多軸応力負荷試験装置。5. A first test jig arranged on one side of a test piece, a second test jig arranged on another side of the test piece, and the first test jig and the second test jig. A screw which is screwed into each of the test pieces and applies stress to the ZX plane and the ZY plane of the test piece.
を特徴とする請求項５記載の多軸応力負荷試験装置。6. The multiaxial stress load test apparatus according to claim 5, wherein the test piece has a plate on both sides.
に空間を形成した第１枠板と、前記試験片を挟む他側面
に配置し、中間部分に空間を形成した第２枠板と、台板
に載設し、前記第２枠板の空間を挿通して前記試験片を
支持するブロックと、前記台板および前記第２枠板に螺
合し、前記試験片に応力を与えるボルトとを備えたこと
を特徴とする多軸応力負荷試験装置。7. A first frame plate disposed on one side sandwiching a test piece and having a space formed in an intermediate portion, and a second frame plate disposed on another side sandwiching the test piece and having a space formed in an intermediate portion. And a block mounted on the base plate and inserted into the space of the second frame plate to support the test piece, and screwed to the base plate and the second frame plate to apply stress to the test piece. A multiaxial stress load test device comprising: a bolt;
空間を四辺形に形成するとともに、前記四辺形の長片と
短片との比を変動させる構成にしたことを特徴とする請
求項７記載の多軸応力負荷試験装置。8. Each of the first frame plate and the second frame plate,
The multiaxial stress load test apparatus according to claim 7, wherein the space is formed in a quadrilateral, and a ratio between a long piece and a short piece of the quadrilateral is changed.
特徴とする請求項７記載の多軸応力負荷試験装置。9. The apparatus according to claim 7, wherein the test piece includes a strain gauge.
験治具と、前記試験片を挟む他側面に配置した第２試験
治具と、前記第１試験治具のＺＸ面を前記試験片に対
し、異なる曲率で形成した複数の凹面部と、前記第１試
験治具のＺＹ面を前記試験片に対し、一つの曲率で形成
した凹面部と、前記第２試験治具のＺＸ面を前記試験片
に対し、複数個に形成した凸面部と、前記第２試験治具
のＺＹ面を前記試験片に対し、一つに形成した凸面部
と、前記第１試験治具および前記第２試験治具から前記
試験片のＺＸ面およびＺＹ面に応力を与えるボルトとを
備えたことを特徴とする多軸応力負荷試験装置。10. A test apparatus comprising: a first test jig disposed on one side of a test piece, a second test jig disposed on another side of the test piece, and a ZX surface of the first test jig. A plurality of concave portions formed with different curvatures with respect to the test piece, a ZY surface of the first test jig with respect to the test piece, a concave surface portion formed with one curvature, and a ZX surface of the second test jig. A plurality of convex portions formed on the test piece, a ZY surface of the second test jig formed on the test piece with one convex portion, the first test jig and the first (2) A multiaxial stress load test apparatus, comprising: a bolt for applying stress from the test jig to the ZX plane and the ZY plane of the test piece.
具と、前記試験片を前記固定治具に固定支持するピン
と、前記試験片および前記固定治具に引張応力を与える
ボルトと、前記試験片に圧縮応力を与えるボルトとを備
えたことを特徴とする多軸応力負荷試験装置。11. A fixing jig having a groove for accommodating a test piece, a pin for fixing and supporting the test piece to the fixing jig, a bolt for applying a tensile stress to the test piece and the fixing jig, And a bolt for applying a compressive stress to the test piece.
治具とに区分けするとともに、引張用のボルトを前記第
１固定治具を介して前記第２固定治具に螺合させたこと
を特徴とする請求項１１記載の多軸応力負荷試験装置。12. The fixing jig is divided into a first fixing jig and a second fixing jig, and a tension bolt is screwed to the second fixing jig via the first fixing jig. The multiaxial stress load test device according to claim 11, wherein the test is performed.
治具とに区分けするとともに、圧縮用ボルトを前記第２
固定治具を介して試験片に螺合させたことを特徴とする
請求項１１記載の多軸応力負荷試験装置。13. The fixing jig is divided into a first fixing jig and a second fixing jig, and a compression bolt is attached to the second fixing jig.
The multiaxial stress load test device according to claim 11, wherein the test piece is screwed to the test piece via a fixing jig.
片の間に補助板を充填したことを特徴とする請求項１２
または１３記載の多軸応力負荷試験装置。14. The second fixing jig is filled with an auxiliary plate between test pieces housed in the groove.
Or a multiaxial stress load test apparatus according to item 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001096397A JP4249403B2 (en) | 2001-03-29 | 2001-03-29 | Multi-axial stress load test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001096397A JP4249403B2 (en) | 2001-03-29 | 2001-03-29 | Multi-axial stress load test equipment |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002296161A true JP2002296161A (en) | 2002-10-09 |
| JP2002296161A5 JP2002296161A5 (en) | 2006-11-02 |
| JP4249403B2 JP4249403B2 (en) | 2009-04-02 |
Family
ID=18950314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001096397A Expired - Fee Related JP4249403B2 (en) | 2001-03-29 | 2001-03-29 | Multi-axial stress load test equipment |
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| Country | Link |
|---|---|
| JP (1) | JP4249403B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008261652A (en) * | 2007-04-10 | 2008-10-30 | Nippon Steel Corp | Sensor for measuring amount of corrosion |
| JP2013174592A (en) * | 2012-02-23 | 2013-09-05 | Airbus Operations Ltd | Test apparatus for providing axial stresses in structure |
| JP2014016200A (en) * | 2012-07-06 | 2014-01-30 | Mitsubishi Heavy Ind Ltd | Multiaxial stress application testing device and prediction method of stress corrosion cracking |
-
2001
- 2001-03-29 JP JP2001096397A patent/JP4249403B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008261652A (en) * | 2007-04-10 | 2008-10-30 | Nippon Steel Corp | Sensor for measuring amount of corrosion |
| JP2013174592A (en) * | 2012-02-23 | 2013-09-05 | Airbus Operations Ltd | Test apparatus for providing axial stresses in structure |
| JP2014016200A (en) * | 2012-07-06 | 2014-01-30 | Mitsubishi Heavy Ind Ltd | Multiaxial stress application testing device and prediction method of stress corrosion cracking |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4249403B2 (en) | 2009-04-02 |
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