DE2414250A1 - Vorrichtung zur automatischen verfolgung der ausbreitung eines ermuedungsrisses in einem probekoerper - Google Patents

Vorrichtung zur automatischen verfolgung der ausbreitung eines ermuedungsrisses in einem probekoerper

Info

Publication number
DE2414250A1
DE2414250A1 DE2414250A DE2414250A DE2414250A1 DE 2414250 A1 DE2414250 A1 DE 2414250A1 DE 2414250 A DE2414250 A DE 2414250A DE 2414250 A DE2414250 A DE 2414250A DE 2414250 A1 DE2414250 A1 DE 2414250A1
Authority
DE
Germany
Prior art keywords
sensor
motor
crack
comparator
potentiometer
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.)
Withdrawn
Application number
DE2414250A
Other languages
German (de)
English (en)
Inventor
Henry Donnadieu
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Publication of DE2414250A1 publication Critical patent/DE2414250A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9006—Details, e.g. in the structure or functioning of sensors
    • 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
    • G01N3/02—Details
    • G01N3/06—Special adaptations of indicating or recording means
    • G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording 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
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • 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
    • G01N2203/02—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
DE2414250A 1973-03-23 1974-03-25 Vorrichtung zur automatischen verfolgung der ausbreitung eines ermuedungsrisses in einem probekoerper Withdrawn DE2414250A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7310605A FR2222912A5 (enExample) 1973-03-23 1973-03-23

Publications (1)

Publication Number Publication Date
DE2414250A1 true DE2414250A1 (de) 1974-09-26

Family

ID=9116804

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2414250A Withdrawn DE2414250A1 (de) 1973-03-23 1974-03-25 Vorrichtung zur automatischen verfolgung der ausbreitung eines ermuedungsrisses in einem probekoerper

Country Status (5)

Country Link
US (1) US3918299A (enExample)
JP (1) JPS49129583A (enExample)
DE (1) DE2414250A1 (enExample)
FR (1) FR2222912A5 (enExample)
GB (1) GB1418853A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117388277A (zh) * 2023-12-08 2024-01-12 江苏现代工程检测有限公司 一种桥梁裂缝检测装置

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979949A (en) * 1975-06-30 1976-09-14 The Boeing Company Fatigue damage indicator
US4003246A (en) * 1975-08-08 1977-01-18 Mts Systems Corporation Specimen crack stress intensity control loop for test device
JPS5819214B2 (ja) * 1977-10-26 1983-04-16 株式会社小松製作所 疲労試験片の亀裂長さ検出装置
US4639997A (en) * 1984-01-23 1987-02-03 Tensiodyne Scientific Corporation Method of making a device for monitoring fatigue life
US4590804A (en) * 1984-01-23 1986-05-27 Tensiodyne Scientific Corporation Device for monitoring fatigue life
US4574642A (en) * 1984-11-23 1986-03-11 The Firestone Tire & Rubber Company Apparatus for automated crack growth rate measurement
US4827773A (en) * 1988-03-10 1989-05-09 The United States Of America As Represented By The United States Department Of Energy Measuring alignment of loading fixture
DE3902095C2 (de) * 1989-01-25 1997-01-16 Helmut Fischer Gmbh & Co Meßsonde zur Messung dünner Schichten
US4911017A (en) * 1989-04-21 1990-03-27 The Goodyear Tire & Rubber Company Multiple sample automated cut growth analysis
US5698977A (en) * 1993-10-12 1997-12-16 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Eddy current method for fatigue testing
US6339331B1 (en) * 1999-12-14 2002-01-15 General Electric Company Methods and apparatus for inspecting TV-shaped openings, using eddy current
WO2006031813A2 (en) * 2004-09-13 2006-03-23 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration System and method for detecting cracks and their location
US7231832B2 (en) * 2004-09-13 2007-06-19 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration System and method for detecting cracks and their location
US7185545B2 (en) * 2004-12-29 2007-03-06 General Electric Company Instrumentation and method for monitoring change in electric potential to detect crack growth
CN103033559B (zh) * 2012-12-10 2015-12-02 中国飞机强度研究所 一种裂纹自动跟踪系统及跟踪方法
US9329153B2 (en) 2013-01-02 2016-05-03 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of mapping anomalies in homogenous material
FR3004808B1 (fr) * 2013-04-22 2015-04-17 Snecma Procede d'analyse d'un facies de rupture d'une piece de turbomachine
CN105784484B (zh) * 2016-04-26 2018-06-08 山西省交通科学研究院 一种裂缝填缝材料性能测试装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628377A (en) * 1969-07-24 1971-12-21 David E Weiss Strain level counter
US3845657A (en) * 1972-02-04 1974-11-05 Westinghouse Electric Corp Surveillance system including means for detecting impending failure in high pressure, high temperature fluid conducting pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117388277A (zh) * 2023-12-08 2024-01-12 江苏现代工程检测有限公司 一种桥梁裂缝检测装置
CN117388277B (zh) * 2023-12-08 2024-02-06 江苏现代工程检测有限公司 一种桥梁裂缝检测装置

Also Published As

Publication number Publication date
FR2222912A5 (enExample) 1974-10-18
US3918299A (en) 1975-11-11
GB1418853A (en) 1975-12-24
JPS49129583A (enExample) 1974-12-11

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination