JPH05302880A - Apparatus for fatigue test - Google Patents
Apparatus for fatigue testInfo
- Publication number
- JPH05302880A JPH05302880A JP11047692A JP11047692A JPH05302880A JP H05302880 A JPH05302880 A JP H05302880A JP 11047692 A JP11047692 A JP 11047692A JP 11047692 A JP11047692 A JP 11047692A JP H05302880 A JPH05302880 A JP H05302880A
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- laser beam
- test
- strain
- laser
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はボイラやジェットエンジ
ン等で用いられる機器の実機からの微小サンプル採取に
よる材料データの収集および実機の余寿命を予測するの
に使用する疲労試験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 fatigue test apparatus used for collecting material data from a real machine used in a boiler, jet engine or the like by collecting minute data and predicting the remaining life of the real machine. ..
【０００２】[0002]
【従来の技術】火力発電設備、原子力発電設備等の大型
プラント、ジェットエンジンやロケットエンジン等の部
品の寿命延長を図るため、または各種新素材や複合材料
の評価をする為にかかる材料の強度を測定することは極
めて重要なことである。従来、測定物である材料の歪を
測定するには、例えばストレインゲージのような歪検出
材を貼り付けた伸び計治具を試験片の両端を引張る試験
装置に取り付け、該試験片を引張り、歪検出治具（スト
レインゲージ）により試験片の歪を測定する方法等が採
られていた。2. Description of the Related Art The strength of materials used to extend the life of parts such as large plants such as thermal power generation facilities and nuclear power generation facilities, jet engines and rocket engines, or to evaluate various new materials and composite materials. Measuring is extremely important. Conventionally, in order to measure the strain of the material to be measured, for example, an extensometer jig attached with a strain detection material such as a strain gauge is attached to a test device for pulling both ends of the test piece, and the test piece is pulled, A method of measuring the strain of the test piece with a strain detection jig (strain gauge) has been adopted.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記方
法では試験装置が複雑となり、かつ歪検出治具を装着す
るためのスペースが必要であり、微小試験片の測定の際
に取り付けることは困難であった。また、雰囲気を高温
状態にして各材料の評価をするには、従来は試験装置ご
と高温チャンバ内に設置して試験を行なっていた。しか
しながら、この方法においては高温チャンバを試験装置
の一部と解すれば、実質的に非常に大きな試験装置とな
り、非常に不便であった。また、高温を保つための消費
エネルギも大きく、さらには試験装置自体の耐久性およ
び精度を劣化させてしまうものであった。また、微小試
験片を大気中にさらして試験を行なうと、試験片が酸化
し易く、試験片が酸化すると正規の断面積が減少してし
まう。断面積が減少すると、通常寸法（例：直径１ｃｍ
以上）の場合はほとんど問題でなかったが、微小試験片
（例：直径５ｍｍ）の場合、真応力が相当に増加して破
断時間が短くなってしまい正確な試験ができないことに
なる。However, in the above method, the test apparatus is complicated, and a space for mounting the strain detection jig is required, and it is difficult to mount the micro test piece during measurement. It was Further, in order to evaluate each material while keeping the atmosphere in a high temperature state, conventionally, a test apparatus was installed in a high temperature chamber and a test was conducted. However, in this method, if the high temperature chamber is regarded as a part of the test apparatus, it becomes a substantially very large test apparatus, which is very inconvenient. Further, energy consumption for keeping the high temperature is large, and further, the durability and accuracy of the test apparatus itself are deteriorated. Further, when the test is performed by exposing the micro test piece to the atmosphere, the test piece is easily oxidized, and when the test piece is oxidized, the regular cross-sectional area is reduced. If the cross-sectional area decreases, the normal dimensions (eg diameter 1 cm
In the above case, there was almost no problem, but in the case of a micro test piece (eg, diameter 5 mm), the true stress increases considerably and the breaking time becomes short, so that an accurate test cannot be performed.
【０００４】本発明は上記課題を解決するためになされ
たもので、試験片の歪を非接触的に測定すると共に、試
験装置および試験片の小型化さらには測定精度の向上を
容易に達成する疲労試験装置を提供するものである。The present invention has been made in order to solve the above-mentioned problems, and it is possible to measure the strain of a test piece in a non-contact manner and to easily achieve miniaturization of the test apparatus and the test piece and further improvement of the measurement accuracy. A fatigue test apparatus is provided.
【０００５】[0005]
【課題を解決するための手段】本発明の疲労試験装置
は、 （１）微小な試験片が装着されて該試験片に繰返し応力
を付加する装着装置 （２）試験片周囲を不活性ガス雰囲気又は真空に保つ少
なくとも一部が透明な覆壁 （３）試験片の側方に設けられ、試験片およびその周
囲に向けてレーザビームを照射するレーザビーム発振
器、レーザビームを受光するレーザビーム受振器とか
らなるレーザ変位計 を具備することを特徴とするものである。The fatigue testing apparatus of the present invention comprises (1) a mounting apparatus for mounting a microscopic test piece and applying repetitive stress to the test piece (2) an inert gas atmosphere around the test piece Alternatively, at least a part of which is kept in vacuum is a transparent cover wall (3) A laser beam oscillator that is provided on the side of the test piece and emits a laser beam toward the test piece and its periphery, and a laser beam geophone that receives the laser beam. And a laser displacement meter consisting of
【０００６】請求項２記載の疲労試験装置は、請求項１
記載の疲労試験装置において、試験片の側方近傍に試験
片を加熱する赤外線放射加熱炉が設けられていることを
特徴とするものである。The fatigue test apparatus according to claim 2 is the same as that according to claim 1.
The fatigue test apparatus described above is characterized in that an infrared radiation heating furnace for heating the test piece is provided in the vicinity of the lateral side of the test piece.
【０００７】[0007]
【作用】本発明では、微小試験片を装着装置に装着し、
試験片の周囲を覆壁にて気密に保持すると共に内部を真
空にし、またはさらに該内部に不活性ガスを注入して不
活性ガス雰囲気とし、真空中または不活性ガス雰囲気中
で上記試験片の疲労試験を行うものである。試験片の疲
労試験を、真空中または不活性ガス雰囲気中で行うこと
により、試験片の酸化のおそれがなく、酸化による減肉
の効果を受けずに疲労試験を行なうことが可能となり、
材料強度の正確な評価および、実機の余寿命を正確に予
測することができる。また、測定には、レーザビーム発
振器が発光したレーザビームの、変位する装着装置によ
って遮られることで変化するレーザビーム受振器への到
達量の変化を測定するレーザ変位計を使用するものであ
るから、試験片に対して非接触的に試験を行なうことが
でき、誤差要因を排除でき、容易に正確な測定をするこ
とができる。また、試験片の加熱には、試験片の側方部
に設けられた赤外線放射加熱炉を使用するものであるか
ら、試験片の周囲のみを効率的に加熱することができ
る。従って試験装置の小型化を実現することができる。In the present invention, the micro test piece is mounted on the mounting device,
The surroundings of the test piece are kept airtight with a cover wall and the inside is evacuated, or an inert gas is further injected into the inside to make an inert gas atmosphere, and the test piece is placed in a vacuum or an inert gas atmosphere. A fatigue test is conducted. By performing the fatigue test of the test piece in a vacuum or an inert gas atmosphere, there is no risk of oxidation of the test piece, and it becomes possible to perform the fatigue test without being affected by the effect of thinning due to oxidation.
It is possible to accurately evaluate the material strength and accurately predict the remaining life of the actual machine. In addition, the measurement uses a laser displacement meter that measures the change in the amount of arrival of the laser beam emitted by the laser beam oscillator at the laser beam geophone that is changed by being blocked by the mounting device that is displaced. The test piece can be tested in a non-contact manner, error factors can be eliminated, and accurate measurement can be easily performed. Further, since the infrared radiation heating furnace provided on the side of the test piece is used for heating the test piece, only the periphery of the test piece can be efficiently heated. Therefore, miniaturization of the test apparatus can be realized.
【０００８】[0008]
【実施例】本発明の一実施例である疲労試験装置を図１
に示す。図１に示す疲労試験装置１０は、下端で試験片
３２を掴持する上部ロッド２２と、上部ロッド２２に装
着したロードセル１４と、上端で試験片３２を掴持する
下部ロッド２０と、下部ロッド２０を介して試験片３２
に繰返し応力を付加するアクチュエータ１２とからなる
装着装置と、試験片３２の側方に設けられた覆壁２４
と、覆壁２４の外側方に設けられた赤外線放射加熱炉２
６と、さらに赤外線放射加熱炉２６の外側方に設けられ
たレーザビーム発振器２８とレーザビーム受振器３０と
からなるレーザ変位計とから概略構成される。尚、符号
１６は下部ロッド２０を往復運動自在に支持する円筒状
の下部ロッド支持体であり、符号１８は上部ロッド２２
を往復運動自在に支持する円筒状の上部ロッド支持体で
ある。アクチュエータ１２及びロードセル１４はそれぞ
れ下部ロッド２０と上部ロッド２２を作動させ、ロッド
２０，２２に掴持された試験片３２を引張ったり、圧縮
したりして試験片３２に繰り返し応力を付加する。FIG. 1 shows a fatigue test apparatus which is an embodiment of the present invention.
Shown in. The fatigue test apparatus 10 shown in FIG. 1 includes an upper rod 22 that holds a test piece 32 at its lower end, a load cell 14 attached to the upper rod 22, a lower rod 20 that holds the test piece 32 at its upper end, and a lower rod. Test piece 32 through 20
A mounting device including an actuator 12 that repeatedly applies stress to the test piece 32, and a cover wall 24 provided on a side of the test piece 32.
And the infrared radiation heating furnace 2 provided outside the covering wall 24.
6 and a laser displacement meter including a laser beam oscillator 28 and a laser beam geophone 30 provided outside the infrared radiation heating furnace 26. Reference numeral 16 is a cylindrical lower rod support that supports the lower rod 20 so that it can reciprocate, and reference numeral 18 is an upper rod 22.
Is a cylindrical upper rod support that supports the reciprocating motion of the. The actuator 12 and the load cell 14 respectively actuate the lower rod 20 and the upper rod 22 to pull or compress the test piece 32 held by the rods 20 and 22, thereby repeatedly applying stress to the test piece 32.
【０００９】試験片３２の側方に設けられた筒状の覆壁
２４は試験片３２を外部から遮断し、試験片３２の周囲
を気密にし、不活性ガス雰囲気または真空に保つ。従っ
て、図１では覆壁３２は両ロッド支持体１６，１８に固
定されているが、例えばアクチュエータ１２等の他の各
種部材に固定されていても構わない。また、覆壁２４は
少なくとも赤外線とレーザビームが透過する材質でなけ
ればならず、透明石英ガラスが好適である。尚、レーザ
ビームの通過部分だけが、レーザビームを透過する材質
で構成されているのであっても良い。さらに、試験片３
２を加熱するにあたり、覆壁２４も加熱されるので、該
加熱温度に耐えられる程度の耐熱性を有したものでなけ
ればならない。A cylindrical cover wall 24 provided on the side of the test piece 32 shields the test piece 32 from the outside, hermetically seals the periphery of the test piece 32, and keeps it in an inert gas atmosphere or a vacuum. Therefore, although the cover wall 32 is fixed to both rod supports 16 and 18 in FIG. 1, it may be fixed to other various members such as the actuator 12, for example. In addition, the cover wall 24 must be made of a material that transmits at least infrared rays and a laser beam, and transparent quartz glass is suitable. It should be noted that only the portion through which the laser beam passes may be made of a material that transmits the laser beam. Furthermore, test piece 3
Since the cover wall 24 is also heated when heating 2, the heat resistance must be high enough to withstand the heating temperature.
【００１０】さらに、覆壁２４の外側部に設けられた赤
外線放射加熱炉２６は試験片３２を加熱するものであ
る。赤外線放射加熱炉２６にはスリットが形成され、レ
ーザビーム発振器２８からのレーザビームは該スリット
を通過して試験片３２に照射するように構成されてい
る。Further, the infrared radiation heating furnace 26 provided on the outer side of the cover wall 24 heats the test piece 32. A slit is formed in the infrared radiation heating furnace 26, and the laser beam from the laser beam oscillator 28 passes through the slit to irradiate the test piece 32.
【００１１】さらに、赤外線放射加熱炉２６の外側部に
設けられたレーザ変位計はレーザビーム発振器２８とレ
ーザビーム受振器３０とからなり、レーザビーム受振器
３０はレーザビーム発振器２８から発光されたレーザビ
ームを受光し、接続されているコンピュータ（図示略）
に電気信号として送信する。Further, the laser displacement gauge provided outside the infrared radiation heating furnace 26 comprises a laser beam oscillator 28 and a laser beam geophone 30. The laser beam geophone 30 emits a laser beam emitted from the laser beam oscillator 28. Computer that receives the beam and is connected (not shown)
As an electric signal.
【００１２】本実施例の疲労試験装置１０において疲労
試験を行なう方法を以下に記す。まず、試験片３２を装
着装置の上部ロッド２２の下端と下部ロッド２０の上端
に装着する。次に、覆壁２４で囲まれた試験片周囲部３
４を気密状態にする。そして、真空ポンプ（図示略）に
て試験片周囲部３４を真空にした後、ガスボンベ（図示
略）から試験片周囲部３４に不活性ガスを充填する。不
活性ガスにはアルゴンガスが最適であるが、アルゴンガ
スの他にもネオンガスや、さらには加熱温度が超高温で
なければ窒素ガス等も使用できる。また、不活性ガスを
充填させず、真空中で試験を行なうこともできる。試験
を不活性ガス雰囲気中もしくは真空中で行なうことで、
微小の試験片３２が酸化の影響を受けることなく高温疲
労試験を実施することができ、実機の余寿命を正確に予
測することができる。因に、微小の試験片３２を大気中
で試験すると、微小の試験片３２が酸化の影響を受ける
ことになる。試験片３２が酸化の影響を受けると、酸化
減肉の効果を受けるので、実機の余寿命を正確に予測す
ることができないことになる。A method of performing a fatigue test in the fatigue test apparatus 10 of this embodiment will be described below. First, the test piece 32 is mounted on the lower end of the upper rod 22 and the upper end of the lower rod 20 of the mounting device. Next, the test piece surrounding portion 3 surrounded by the covering wall 24
Make 4 airtight. Then, after vacuuming the test piece peripheral portion 34 with a vacuum pump (not shown), the test piece peripheral portion 34 is filled with an inert gas from a gas cylinder (not shown). Argon gas is most suitable as the inert gas, but neon gas other than argon gas, and nitrogen gas or the like can be used if the heating temperature is not extremely high. It is also possible to perform the test in a vacuum without filling the inert gas. By conducting the test in an inert gas atmosphere or in a vacuum,
The high temperature fatigue test can be carried out without the minute test piece 32 being affected by oxidation, and the remaining life of the actual machine can be accurately predicted. Incidentally, when the minute test piece 32 is tested in the atmosphere, the minute test piece 32 is affected by oxidation. When the test piece 32 is affected by oxidation, it is subjected to the effect of oxidation wall thinning, so that the remaining life of the actual machine cannot be accurately predicted.
【００１３】次に赤外線放射加熱炉２６にて試験片３２
を加熱する。無論、常温時における試験データで十分な
場合には赤外線放射加熱炉２６を作動させる必要、もし
くは赤外線放射加熱炉２６を設ける必要は全くない。試
験片３２が所望の温度に達したならば、ロードセル１４
またはアクチュエータ１２を作動させて、試験片３２を
引張ったり、または圧縮し、試験片３２に繰り返し応力
を付加する。この際、レーザ変位計は作動させておく。
レーザ変位計では、レーザ発振器２８でレーザビームを
試験片３２に向けて照射し、そしてレーザビーム受振器
３０で該レーザビームを受光する。この際、試験片３２
の両端は両ロッド２０，２２に装着されているが、試験
片３２は微小であることからレーザビームは試験片３２
のある範囲では試験片３２の周部を通過してほとんどの
レーザビームがレーザビーム受振器３０に到達するが、
両ロッド２０，２２に当たる範囲に照射するレーザビー
ムは該ロッド２０，２２の幅が広いためにこれらに遮ら
れ、受振器３０に到達しない。従って、試験片３２の伸
縮に応じて受振器３０に到達するレーザビームの量が変
化する。即ち、図２に示すように、レーザビーム発振器
２８から照射された一定幅Ｗ1のレーザビームは試験片
３２の長さに応じて短くなった幅Ｗ2のレーザビームと
してレーザビーム受振器３０に到達する。従って、レー
ザビーム受振器３０でレーザビームの幅Ｗ2、即ちレー
ザビームの量を測定し、その経時変化から試験片３２の
歪量を検出することのできるものである。Next, a test piece 32 is placed in the infrared radiation heating furnace 26.
To heat. Of course, if the test data at room temperature is sufficient, there is no need to operate the infrared radiation heating furnace 26 or to provide the infrared radiation heating furnace 26 at all. When the test piece 32 reaches the desired temperature, the load cell 14
Alternatively, the actuator 12 is operated to pull or compress the test piece 32 to repeatedly apply stress to the test piece 32. At this time, the laser displacement meter is operated.
In the laser displacement meter, the laser beam is directed toward the test piece 32 by the laser oscillator 28, and the laser beam is received by the laser beam geophone 30. At this time, the test piece 32
Both ends of are attached to both rods 20 and 22, but since the test piece 32 is minute, the laser beam is
In a certain range, most of the laser beam passes through the peripheral portion of the test piece 32 and reaches the laser beam geophone 30.
The laser beam irradiating the range hitting both rods 20 and 22 is blocked by the rods 20 and 22 because of the wide width thereof, and does not reach the geophone 30. Therefore, the amount of the laser beam reaching the geophone 30 changes according to the expansion and contraction of the test piece 32. That is, as shown in FIG. 2, the laser beam having a constant width W1 emitted from the laser beam oscillator 28 reaches the laser beam geophone 30 as a laser beam having a width W2 which is shortened according to the length of the test piece 32. . Therefore, it is possible to measure the width W2 of the laser beam, that is, the amount of the laser beam by the laser beam geophone 30 and detect the strain amount of the test piece 32 from the change with time.
【００１４】本実施例の疲労試験装置１０を使用するな
らば、試験片３２になんら検出治具を装着するものでは
なく、非接触的に試験片の歪を検出することができるの
で、微小な試験片を小型で簡易な試験装置で測定するこ
とができ、容易に正確なデータを得ることができる。ま
た、試験片の極周囲のみを加熱するものであるので、試
験装置の小型化を図ることができ、また加熱するために
消費するエネルギも小さくて済むものである。しかも、
高温にさらされる試験装置の部分も小さくて済み、耐久
性および精度が向上する。また、試験片周囲部３４を不
活性ガス又は真空に置換して行なえるので、試験片３２
が酸化することもなく、正確な試験データを得ることが
できる。If the fatigue test apparatus 10 of the present embodiment is used, the test piece 32 is not attached with any detection jig, and the strain of the test piece can be detected in a non-contact manner. The test piece can be measured with a small and simple test device, and accurate data can be easily obtained. Further, since only the extreme periphery of the test piece is heated, the test apparatus can be downsized and the energy consumed for heating can be small. Moreover,
Smaller parts of the test equipment are exposed to high temperatures, which improves durability and accuracy. Further, since the test piece peripheral portion 34 can be replaced by an inert gas or vacuum, the test piece 32 can be replaced.
Accurate test data can be obtained without oxidization.
【００１５】[0015]
【発明の効果】本発明の疲労試験装置によれば、試験片
になんら検出治具を装着するものではなく、レーザ変位
計を使用することで非接触的に試験片の歪を検出するこ
とができるので、微小な試験片を小型で簡易な試験装置
にて測定することができ、容易に正確なデータを得るこ
とができる。また、試験片周囲部は覆壁にて気密が保た
れ試験片周囲部を不活性ガス又は真空に置換して試験を
行なえるので、試験片が酸化することもなく、正確な試
験データを得ることができる。また、試験片の側方部に
設けた赤外線放射加熱炉を使用することで試験片の極周
囲のみを加熱することができ、試験装置の小型化を図る
ことができ、また加熱するために消費するエネルギも小
さくて済むものである。しかも、高温にさらされる試験
装置の部分も小さくて済み、耐久性および精度が向上す
る。According to the fatigue testing apparatus of the present invention, the strain of the test piece can be detected in a non-contact manner by using a laser displacement meter instead of mounting a detection jig on the test piece. Therefore, a minute test piece can be measured by a small and simple test device, and accurate data can be easily obtained. In addition, the surrounding area of the test piece is kept airtight by the covering wall, and the surrounding area of the test piece can be replaced with an inert gas or vacuum to perform the test, so that the test piece is not oxidized and accurate test data is obtained. be able to. In addition, by using the infrared radiation heating furnace installed on the side of the test piece, only the extreme periphery of the test piece can be heated, which can reduce the size of the test equipment and consume it for heating. The energy to do is also small. In addition, the portion of the test apparatus that is exposed to high temperatures can be small, and durability and accuracy can be improved.
【図１】実施例の疲労試験装置の側面図である。FIG. 1 is a side view of a fatigue test apparatus of an example.
【図２】レーザビームの幅の変化を示す側面図である。FIG. 2 is a side view showing a change in width of a laser beam.
【符号の説明】 １０ 疲労試験装置 １２ アクチュエータ ２０ 下部ロッド ２２ 上部ロッド ２４ 覆壁 ２６ 赤外線放射加熱炉 ２８ レーザビーム発振器 ３０ レーザビーム受振器 ３２ 微小試験片 ３４ 試験片周囲部[Explanation of reference numerals] 10 Fatigue test apparatus 12 Actuator 20 Lower rod 22 Upper rod 24 Covering wall 26 Infrared radiation heating furnace 28 Laser beam oscillator 30 Laser beam geophone 32 Micro test piece 34 Peripheral part of test piece
Claims (2)
り返し応力を付加する装着装置と、試験片周囲を不活性
ガス雰囲気又は真空に保つ少なくとも一部が透明な覆壁
と、試験片の側方に設けられ、該試験片およびその周囲
に向けてレーザビームを照射するレーザビーム発振器と
該レーザビームを受光するレーザビーム受振器とからな
るレーザ変位計とを具備することを特徴とする疲労試験
装置。1. A mounting device in which a minute test piece is mounted and which repeatedly applies stress to the test piece, a cover wall at least a part of which is transparent to keep the periphery of the test piece in an inert gas atmosphere or vacuum, and the test piece. And a laser displacement meter that is provided on the side of the laser beam oscillator for irradiating the test piece and its periphery with a laser beam and a laser beam geophone for receiving the laser beam. Fatigue test equipment.
試験片の側方近傍に試験片を加熱する赤外線放射加熱炉
が設けられていることを特徴とする疲労試験装置。2. The fatigue test apparatus according to claim 1, wherein
A fatigue test apparatus characterized in that an infrared radiation heating furnace for heating the test piece is provided near the side of the test piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11047692A JPH05302880A (en) | 1992-04-28 | 1992-04-28 | Apparatus for fatigue test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11047692A JPH05302880A (en) | 1992-04-28 | 1992-04-28 | Apparatus for fatigue test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05302880A true JPH05302880A (en) | 1993-11-16 |
Family
ID=14536684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11047692A Pending JPH05302880A (en) | 1992-04-28 | 1992-04-28 | Apparatus for fatigue test |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05302880A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08327519A (en) * | 1995-05-29 | 1996-12-13 | Shimadzu Corp | Material testing machine for high temperature atmosphere |
| EP0862053A2 (en) * | 1997-02-27 | 1998-09-02 | Rainer Prof. Dr. Renz | Method and device for investigating the mechanical properties of work-pieces |
| EP0921369A2 (en) * | 1997-12-05 | 1999-06-09 | Forschungszentrum Karlsruhe GmbH | Measuring device to determine the change in contour of a specimen for tensile test by various temperatures |
| KR20030004666A (en) * | 2001-07-06 | 2003-01-15 | 현대자동차주식회사 | Apparatus for estimating formability of semi-solid materials |
| JP2008500524A (en) * | 2004-05-25 | 2008-01-10 | アンシディス | Surface strain measuring device |
| JP2011117965A (en) * | 2009-12-04 | 2011-06-16 | Qinghua Univ | Strain measurement device and method of strain measurement using the same |
| US9046350B2 (en) | 2012-09-20 | 2015-06-02 | Hyundai Motor Company | Method and apparatus of measuring precise high speed displacement |
| DE202015105319U1 (en) | 2015-10-07 | 2017-02-10 | Zwick Gmbh & Co. Kg | Energetically advantageous tempering chamber |
| DE102015117134B3 (en) | 2015-10-07 | 2017-03-30 | Zwick Gmbh & Co. Kg | Temperature chamber of a loading device such as a column material testing machine and method for operating such a temperature chamber with a backlight element |
| EP3153839A1 (en) | 2015-10-07 | 2017-04-12 | Zwick GmbH&Co. Kg | Temperature chamber of a load device as a pillar material testing machine and method for operating such a temperature chamber with an element for a backlight |
| JP2018063247A (en) * | 2016-10-07 | 2018-04-19 | 日立金属株式会社 | Material tester and material testing method |
| JP2018096890A (en) * | 2016-12-15 | 2018-06-21 | Ｊｆｅスチール株式会社 | Sulphide stress corrosion crack testing method of steel material |
| JP2020510837A (en) * | 2017-03-16 | 2020-04-09 | 東北大学Ｎｏｒｔｈｅａｓｔｅｒｎ Ｕｎｉｖｅｒｓｉｔｙ | Method and apparatus for fiber reinforced composite parameter identification by non-destructive laser scanning |
| JP2022040006A (en) * | 2020-08-28 | 2022-03-10 | チーリン ユニバーシティー | Complicated atmosphere environment load device of high temperature and low temperature |
-
1992
- 1992-04-28 JP JP11047692A patent/JPH05302880A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08327519A (en) * | 1995-05-29 | 1996-12-13 | Shimadzu Corp | Material testing machine for high temperature atmosphere |
| EP0862053A2 (en) * | 1997-02-27 | 1998-09-02 | Rainer Prof. Dr. Renz | Method and device for investigating the mechanical properties of work-pieces |
| EP0862053A3 (en) * | 1997-02-27 | 1999-12-22 | Rainer Prof. Dr. Renz | Method and device for investigating the mechanical properties of work-pieces |
| EP0921369A2 (en) * | 1997-12-05 | 1999-06-09 | Forschungszentrum Karlsruhe GmbH | Measuring device to determine the change in contour of a specimen for tensile test by various temperatures |
| EP0921369A3 (en) * | 1997-12-05 | 2001-05-16 | Forschungszentrum Karlsruhe GmbH | Measuring device to determine the change in contour of a specimen for tensile test by various temperatures |
| KR20030004666A (en) * | 2001-07-06 | 2003-01-15 | 현대자동차주식회사 | Apparatus for estimating formability of semi-solid materials |
| JP4739330B2 (en) * | 2004-05-25 | 2011-08-03 | アンシディス | Surface strain measuring device |
| JP2008500524A (en) * | 2004-05-25 | 2008-01-10 | アンシディス | Surface strain measuring device |
| JP2011117965A (en) * | 2009-12-04 | 2011-06-16 | Qinghua Univ | Strain measurement device and method of strain measurement using the same |
| US9046350B2 (en) | 2012-09-20 | 2015-06-02 | Hyundai Motor Company | Method and apparatus of measuring precise high speed displacement |
| DE202015105319U1 (en) | 2015-10-07 | 2017-02-10 | Zwick Gmbh & Co. Kg | Energetically advantageous tempering chamber |
| DE102015117134B3 (en) | 2015-10-07 | 2017-03-30 | Zwick Gmbh & Co. Kg | Temperature chamber of a loading device such as a column material testing machine and method for operating such a temperature chamber with a backlight element |
| EP3153839A1 (en) | 2015-10-07 | 2017-04-12 | Zwick GmbH&Co. Kg | Temperature chamber of a load device as a pillar material testing machine and method for operating such a temperature chamber with an element for a backlight |
| JP2018063247A (en) * | 2016-10-07 | 2018-04-19 | 日立金属株式会社 | Material tester and material testing method |
| JP2018096890A (en) * | 2016-12-15 | 2018-06-21 | Ｊｆｅスチール株式会社 | Sulphide stress corrosion crack testing method of steel material |
| JP2020510837A (en) * | 2017-03-16 | 2020-04-09 | 東北大学Ｎｏｒｔｈｅａｓｔｅｒｎ Ｕｎｉｖｅｒｓｉｔｙ | Method and apparatus for fiber reinforced composite parameter identification by non-destructive laser scanning |
| JP2022040006A (en) * | 2020-08-28 | 2022-03-10 | チーリン ユニバーシティー | Complicated atmosphere environment load device of high temperature and low temperature |
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