IN2015DN01774A - - Google Patents

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Publication number
IN2015DN01774A
IN2015DN01774A IN1774DEN2015A IN2015DN01774A IN 2015DN01774 A IN2015DN01774 A IN 2015DN01774A IN 1774DEN2015 A IN1774DEN2015 A IN 1774DEN2015A IN 2015DN01774 A IN2015DN01774 A IN 2015DN01774A
Authority
IN
India
Prior art keywords
masses
rigid
test piece
cyclic load
crack
Prior art date
Application number
Inventor
Caroline Mary
Christophe Cluzel
Moura Pinho Raul Fernando De
Arnaud Longuet
Sylvie Pommier
François Vogel
Original Assignee
Turbomeca
Centre Nat Rech Scient
Ecole Norm Superieure Cachan
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 Turbomeca, Centre Nat Rech Scient, Ecole Norm Superieure Cachan filed Critical Turbomeca
Publication of IN2015DN01774A publication Critical patent/IN2015DN01774A/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

Abstract

A HIGH FREQUENCY METHOD FOR DETERMINING THE NON PROPAGATION THRESHOLD OF FATIGUE CRACKS IN WHICH A CYCLIC LOAD (32 32A) IS APPLIED TO AT LEAST ONE TEST PIECE COMPRISING IN A TEST AREA (10A) AN ELLIPTICAL HOLE (12) HAVING A NOTCH (14) AT ONE APEX AND HELD BETWEEN TWO RIGID MASSES (24 26) TWO RIGID PRESTRESSING PLATES (20 22) BEING DISPOSED ON EITHER SIDE OF SAID TEST PIECE AND BEING SECURED AT EACH OF THE TWO ENDS (20A 22A; 20B 22B) OF SAME TO THE TWO RIGID MASSES THE FREQUENCY OF THE CYCLIC LOAD (32 32A) BEING CHOSEN AS EQUAL TO THE NATURAL FREQUENCY OF THE TEST PIECE/MASSES/PRESTRESSING PLATES ASSEMBLY SO AS TO GENERATE A FATIGUE CRACK FROM THE NOTCH; THEN WHEN IT IS OBSERVED THAT THE CRACK HAS STOPPED PROPAGATING THE FINAL LENGTH OF THE CRACK IS RECORDED AND SAID NON PROPAGATION THRESHOLD ?K OF THE FATIGUE CRACK IS DETERMINED USING A TABLE THE CYCLIC LOAD BEING OBTAINED BY A VIBRATING ELECTRODYNAMIC POT INTEGRALLY ATTACHED BY MEANS OF RIGID POSTS TO A FRAME SUPPORTING THE TWO RIGID MASSES AND COMPRISING A PUSH ROD TO TRANSMIT SAID CYCLIC LOAD TO THE TEST PIECE/MASSES/PRESTRESSING PLATES ASSEMBLY.
IN1774DEN2015 2012-09-04 2013-08-30 IN2015DN01774A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1258250A FR2995080B1 (en) 2012-09-04 2012-09-04 METHOD FOR HIGH-FREQUENCY DETERMINATION OF FATURE NON-PROPAGATION FATIGUE THRESHOLD
PCT/FR2013/052002 WO2014037654A1 (en) 2012-09-04 2013-08-30 High frequency method for determining the non-propagation threshold of fatigue cracks

Publications (1)

Publication Number Publication Date
IN2015DN01774A true IN2015DN01774A (en) 2015-05-29

Family

ID=47088985

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1774DEN2015 IN2015DN01774A (en) 2012-09-04 2013-08-30

Country Status (11)

Country Link
US (1) US9423330B2 (en)
EP (1) EP2893318A1 (en)
JP (1) JP6573828B2 (en)
KR (1) KR102129151B1 (en)
CN (1) CN104704342B (en)
BR (1) BR112015004764B1 (en)
CA (1) CA2884198C (en)
FR (1) FR2995080B1 (en)
IN (1) IN2015DN01774A (en)
RU (1) RU2627939C2 (en)
WO (1) WO2014037654A1 (en)

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US10732085B2 (en) 2015-03-24 2020-08-04 Bell Helicopter Textron Inc. Notch treatment methods for flaw simulation
US10094751B2 (en) * 2015-03-24 2018-10-09 Bell Helicopter Textron Inc. System and method for determining direct damage tolerance allowables
US9513200B1 (en) * 2015-11-04 2016-12-06 Rolls-Royce Corporation Determination of a threshold crack length
CN105372119A (en) * 2015-12-05 2016-03-02 西安科技大学 Vibration cracking test device under energy control
CN105973983A (en) * 2016-05-09 2016-09-28 西北工业大学 Method for designing ultrasonic torsion fatigue testing specimen with uniform section
US10746640B2 (en) * 2017-03-21 2020-08-18 Textron Innovations Inc. Methods of making a tubular specimen with a predetermined wrinkle defect
US10744727B2 (en) 2017-03-21 2020-08-18 Textron Innovations Inc. Methods of making a specimen with a predetermined wrinkle defect
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CN108362597B (en) * 2018-02-05 2021-06-15 上海航空材料结构检测股份有限公司 Metal abrasion fatigue test method
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US10845267B2 (en) * 2018-12-10 2020-11-24 Efs International S.A. Fatigue fuse mounting systems and methods
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CN111929146B (en) * 2020-06-18 2023-06-13 广东石油化工学院 Observing device for fatigue crack growth of metal material
US11680869B2 (en) * 2020-09-03 2023-06-20 University Of South Carolina Vibration test-cell with axial load and in-situ microscopy
CN112694008A (en) * 2020-12-22 2021-04-23 中冶建筑研究总院有限公司 Early warning method and device for fatigue failure of steel crane beam
CN114112130B (en) * 2021-09-30 2023-04-21 河海大学 Device and method capable of repeatedly measuring stress intensity factor of crack tip

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Also Published As

Publication number Publication date
KR102129151B1 (en) 2020-07-01
KR20150047523A (en) 2015-05-04
RU2015112213A (en) 2016-10-27
JP2015530570A (en) 2015-10-15
FR2995080B1 (en) 2015-10-23
US9423330B2 (en) 2016-08-23
CN104704342B (en) 2017-11-07
RU2627939C2 (en) 2017-08-14
JP6573828B2 (en) 2019-09-11
BR112015004764A2 (en) 2018-05-22
BR112015004764B1 (en) 2021-01-12
WO2014037654A1 (en) 2014-03-13
CA2884198C (en) 2021-06-15
FR2995080A1 (en) 2014-03-07
CA2884198A1 (en) 2014-03-13
EP2893318A1 (en) 2015-07-15
US20150219539A1 (en) 2015-08-06
CN104704342A (en) 2015-06-10

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