FR2455272A1 - Fatigue life testing of material - is determined by calculator control of deformation and force applied to sample - Google Patents

Fatigue life testing of material - is determined by calculator control of deformation and force applied to sample

Info

Publication number
FR2455272A1
FR2455272A1 FR7910320A FR7910320A FR2455272A1 FR 2455272 A1 FR2455272 A1 FR 2455272A1 FR 7910320 A FR7910320 A FR 7910320A FR 7910320 A FR7910320 A FR 7910320A FR 2455272 A1 FR2455272 A1 FR 2455272A1
Authority
FR
France
Prior art keywords
sample
deformation
force applied
order
calculator
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
Application number
FR7910320A
Other languages
French (fr)
Other versions
FR2455272B1 (en
Inventor
Georges Baudin
Henri Kaczmarek
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR7910320A priority Critical patent/FR2455272A1/en
Publication of FR2455272A1 publication Critical patent/FR2455272A1/en
Application granted granted Critical
Publication of FR2455272B1 publication Critical patent/FR2455272B1/fr
Granted legal-status Critical Current

Links

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
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces

Abstract

Materials are subjected to traction and compression tests during fatigue testing in order to determine the useful life. The measurements are made in real time in order to determine the deformation. A cylindrical sample (1) is attached via a dynamometer (4) to the chassis (2) of a traction machine (3). The sample is heated by an induction heater (5) powered from an HF source (52). The temp. is measured by a pyrometer (6). The central part (14) of the sample is subjected to constant deformation controlled by a calculator (7) to which the outputs of extensometers (4) and a displacement sensor (8) are connected. The displacement sensor is attached to the heads (11,12) on the sample. The calculator also receives the force applied to the sample in order to provide deformation valves for a comparator (9) to control the traction machine.
FR7910320A 1979-04-24 1979-04-24 Fatigue life testing of material - is determined by calculator control of deformation and force applied to sample Granted FR2455272A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7910320A FR2455272A1 (en) 1979-04-24 1979-04-24 Fatigue life testing of material - is determined by calculator control of deformation and force applied to sample

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7910320A FR2455272A1 (en) 1979-04-24 1979-04-24 Fatigue life testing of material - is determined by calculator control of deformation and force applied to sample

Publications (2)

Publication Number Publication Date
FR2455272A1 true FR2455272A1 (en) 1980-11-21
FR2455272B1 FR2455272B1 (en) 1982-02-12

Family

ID=9224651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910320A Granted FR2455272A1 (en) 1979-04-24 1979-04-24 Fatigue life testing of material - is determined by calculator control of deformation and force applied to sample

Country Status (1)

Country Link
FR (1) FR2455272A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626975A1 (en) * 1988-02-04 1989-08-11 Siderurgie Fse Inst Rech Dual-punching device and methods for its implementation
FR2792412A1 (en) * 1999-04-14 2000-10-20 Framatome Sa Test piece mechanical testing in an autoclave to determine axial strain with the test piece and measurement sensors placed within the autoclave and the sensor output fed outside of the autoclave to give improved accuracy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1165665A (en) * 1967-05-18 1969-10-01 Centre Nat Rech Metall Improvements in or relating to the Determination of Properties of Metallic Substances.
US4099408A (en) * 1977-07-05 1978-07-11 United States Steel Corporation Method for testing sheet metals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1165665A (en) * 1967-05-18 1969-10-01 Centre Nat Rech Metall Improvements in or relating to the Determination of Properties of Metallic Substances.
US4099408A (en) * 1977-07-05 1978-07-11 United States Steel Corporation Method for testing sheet metals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626975A1 (en) * 1988-02-04 1989-08-11 Siderurgie Fse Inst Rech Dual-punching device and methods for its implementation
FR2792412A1 (en) * 1999-04-14 2000-10-20 Framatome Sa Test piece mechanical testing in an autoclave to determine axial strain with the test piece and measurement sensors placed within the autoclave and the sensor output fed outside of the autoclave to give improved accuracy

Also Published As

Publication number Publication date
FR2455272B1 (en) 1982-02-12

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Legal Events

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AR Application made for restoration
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