JP6573828B2 - 高周波での疲労亀裂の非伝播しきい値を決定する方法 - Google Patents
高周波での疲労亀裂の非伝播しきい値を決定する方法 Download PDFInfo
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- JP6573828B2 JP6573828B2 JP2015529104A JP2015529104A JP6573828B2 JP 6573828 B2 JP6573828 B2 JP 6573828B2 JP 2015529104 A JP2015529104 A JP 2015529104A JP 2015529104 A JP2015529104 A JP 2015529104A JP 6573828 B2 JP6573828 B2 JP 6573828B2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0016—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of aircraft wings or blades
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
- G01N2203/0066—Propagation of crack
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/027—Specimens with holes or notches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0258—Structural degradation, e.g. fatigue of composites, ageing of oils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2693—Rotor or turbine parts
Description
試験ゾーンに長円形穴を有する少なくとも1つの試験片であり、穴が1つの端部にノッチを有する試験片と、
2つの剛体質量間に前記少なくとも1つの試験片が保持される該2つの剛体質量と、
前記少なくとも1つの試験片の両側に配置され、その2つの端部で前記2つの剛体質量にそれぞれ固締される、2つの剛性プレストレスプレートと、
前記2つの剛体質量を支持し、繰返し負荷を前記2つの剛体質量を介して前記少くとも1つの試験片に伝達するためのスラストロッドを含む、構造体に剛性直立部分を使って堅固に固締される電気力学的振動機ポットであり、前記繰返し負荷が、疲労亀裂を前記ノッチから生じるように装置の共振周波数に等しいように選択される周波数を有し、亀裂の伝播が停止したことがいったん観察されると、疲労亀裂の長さが疲労亀裂の前記非伝播しきい値ΔKthを決定する、電気力学的振動機ポットと
を備える、試験装置を提供する。
ΔK(x)/ΔKo=exp(−0.08x)
ここに、xは、亀裂の先端と長円形穴の端縁との間の(ミリメートル(mm)での)距離であり、ΔKoは、長円形穴に接近したΔKが到達する最大振幅である。
Claims (6)
- 決定されるべき疲労亀裂の非伝播しきい値を可能にする試験装置であって、
試験ゾーン(10A)に長円形穴(12)を有する少なくとも1つの試験片(10;52、54)であり、長円形穴が、疲労亀裂を開始するための頂点において負荷の方向のノッチ(14)を有し、その最終長さが、疲労の亀裂の非伝播の前記しきい値ΔKthを決定する、試験片と、
2つの剛体質量(24、26;56、58)間に前記少なくとも1つの試験片が保持される、該2つの剛体質量(24、26;56、58)と、
2つのプレストレスプレートであって、前記少なくとも1つの試験片の両側に配置され、その2つの端部(20A、22A;20B、22B)で前記2つの剛体質量にそれぞれ固締されており、前記2つのプレストレスプレートの前記端部のうちの1つと前記2つの剛体質量の対向する1つとの間には、前記2つのプレストレスプレートに引張時に作用すべく、隙間がある、2つのプレストレスプレート(20、22;60、62)と、
前記2つの剛体質量を支持するとともに、負荷の方向において繰返しの負荷を前記2つの剛体質量を介して前記少なくとも1つの試験片に伝達するためのスラストロッド(32A)を含む、構造体(34)に剛性の直立部分(36、38)を使って堅固に固締される電気力学的振動機ポット(32)であり、前記繰返しの負荷は、疲労亀裂を前記ノッチから生じるように装置の共振周波数に等しいように選択される周波数を有する、電気力学的振動機ポット(32)と
を備える、試験装置。 - 前記共振周波数を修正することによって前記の負荷の周波数を変更するための1つまたは複数の付加質量(40A〜40C)をさらに含むことを特徴とする、請求項1に記載の試験装置。
- 前記試験片が、前記2つのプレストレスプレートの前記端部のうちの1つと前記2つの剛体質量の対向する1つとの間に初めに存在する前記隙間を徐々に減少させることによって得られる前記2つのプレストレスプレートに対する引張によって最初は圧縮の状態にされることを特徴とする、請求項1または2に記載の試験装置。
- 2つの試験片(52、54)を備え、2つの剛体質量(56、58)および2つのプレストレスプレート(60、62)に加えられる負荷が曲げ式から成る、請求項1から3のいずれか一項に記載の試験装置。
- 前記プレストレスプレートは、複合材料で作られる、請求項3または4に記載の試験装置。
- 前記直立部分が、剛性ブラケットであることを特徴とする、請求項1から5のいずれか一項に記載の試験装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1258250A FR2995080B1 (fr) | 2012-09-04 | 2012-09-04 | Procede de determination en haute frequence du seuil de non-propagation de fissure par fatigue |
FR1258250 | 2012-09-04 | ||
PCT/FR2013/052002 WO2014037654A1 (fr) | 2012-09-04 | 2013-08-30 | Procédé de détermination en haute fréquence du seuil de non-propagation de fissure par fatigue |
Publications (2)
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JP2015530570A JP2015530570A (ja) | 2015-10-15 |
JP6573828B2 true JP6573828B2 (ja) | 2019-09-11 |
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JP2015529104A Active JP6573828B2 (ja) | 2012-09-04 | 2013-08-30 | 高周波での疲労亀裂の非伝播しきい値を決定する方法 |
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US (1) | US9423330B2 (ja) |
EP (1) | EP2893318A1 (ja) |
JP (1) | JP6573828B2 (ja) |
KR (1) | KR102129151B1 (ja) |
CN (1) | CN104704342B (ja) |
BR (1) | BR112015004764B1 (ja) |
CA (1) | CA2884198C (ja) |
FR (1) | FR2995080B1 (ja) |
IN (1) | IN2015DN01774A (ja) |
RU (1) | RU2627939C2 (ja) |
WO (1) | WO2014037654A1 (ja) |
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2012
- 2012-09-04 FR FR1258250A patent/FR2995080B1/fr active Active
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2013
- 2013-08-30 US US14/425,999 patent/US9423330B2/en active Active
- 2013-08-30 CA CA2884198A patent/CA2884198C/fr active Active
- 2013-08-30 IN IN1774DEN2015 patent/IN2015DN01774A/en unknown
- 2013-08-30 CN CN201380046233.9A patent/CN104704342B/zh active Active
- 2013-08-30 RU RU2015112213A patent/RU2627939C2/ru active
- 2013-08-30 EP EP13766601.2A patent/EP2893318A1/fr active Pending
- 2013-08-30 WO PCT/FR2013/052002 patent/WO2014037654A1/fr active Application Filing
- 2013-08-30 KR KR1020157006748A patent/KR102129151B1/ko active IP Right Grant
- 2013-08-30 BR BR112015004764-5A patent/BR112015004764B1/pt active IP Right Grant
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Publication number | Publication date |
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US20150219539A1 (en) | 2015-08-06 |
BR112015004764A2 (pt) | 2018-05-22 |
CA2884198C (fr) | 2021-06-15 |
KR20150047523A (ko) | 2015-05-04 |
RU2015112213A (ru) | 2016-10-27 |
RU2627939C2 (ru) | 2017-08-14 |
CA2884198A1 (fr) | 2014-03-13 |
CN104704342B (zh) | 2017-11-07 |
FR2995080A1 (fr) | 2014-03-07 |
US9423330B2 (en) | 2016-08-23 |
FR2995080B1 (fr) | 2015-10-23 |
KR102129151B1 (ko) | 2020-07-01 |
CN104704342A (zh) | 2015-06-10 |
EP2893318A1 (fr) | 2015-07-15 |
WO2014037654A1 (fr) | 2014-03-13 |
IN2015DN01774A (ja) | 2015-05-29 |
BR112015004764B1 (pt) | 2021-01-12 |
JP2015530570A (ja) | 2015-10-15 |
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