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FR2234824A5 - Simultaneous torsional and bending fatigue tester - uses cylindrical test pieces loaded by vibrators acting on side arms - Google Patents

Simultaneous torsional and bending fatigue tester - uses cylindrical test pieces loaded by vibrators acting on side arms

Info

Publication number
FR2234824A5
FR2234824A5 FR7323069A FR7323069A FR2234824A5 FR 2234824 A5 FR2234824 A5 FR 2234824A5 FR 7323069 A FR7323069 A FR 7323069A FR 7323069 A FR7323069 A FR 7323069A FR 2234824 A5 FR2234824 A5 FR 2234824A5
Authority
FR
France
Prior art keywords
fatigue tester
cylindrical test
test pieces
side arms
bending fatigue
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.)
Expired
Application number
FR7323069A
Other languages
French (fr)
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.)
BORDEAUX TALENCE ECOLE NALE AR
Original Assignee
BORDEAUX TALENCE ECOLE NALE AR
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 BORDEAUX TALENCE ECOLE NALE AR filed Critical BORDEAUX TALENCE ECOLE NALE AR
Priority to FR7323069A priority Critical patent/FR2234824A5/en
Application granted granted Critical
Publication of FR2234824A5 publication Critical patent/FR2234824A5/en
Expired 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
    • G01N3/32—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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

A fatigue tester that can simultaneously apply a constant and a varying bending moment together with a constant and a varying torsion to the same region of a cylindrical test specimen (3) has two orthogonal arms each of which is vibrated at a point (6, 7) in a vertical direction by electromagnetic vibrators. The vibrations are at the same frequency but the phase between depends on the angle between the arms being 90 deg. for the present vase. Damping masses (11) and oil filled cylinders (12) at the end of each arm allow a variation of the system resonance frequency. A third orthogonal arm (9) can supply a fixed torsion. Other preset forces are supplied via webs (15) linked to a moving chassis (14). The holder of the fixed part of the specimen oscillates a little about a neck (23) in its body.
FR7323069A 1973-06-25 1973-06-25 Simultaneous torsional and bending fatigue tester - uses cylindrical test pieces loaded by vibrators acting on side arms Expired FR2234824A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7323069A FR2234824A5 (en) 1973-06-25 1973-06-25 Simultaneous torsional and bending fatigue tester - uses cylindrical test pieces loaded by vibrators acting on side arms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323069A FR2234824A5 (en) 1973-06-25 1973-06-25 Simultaneous torsional and bending fatigue tester - uses cylindrical test pieces loaded by vibrators acting on side arms

Publications (1)

Publication Number Publication Date
FR2234824A5 true FR2234824A5 (en) 1975-01-17

Family

ID=9121492

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323069A Expired FR2234824A5 (en) 1973-06-25 1973-06-25 Simultaneous torsional and bending fatigue tester - uses cylindrical test pieces loaded by vibrators acting on side arms

Country Status (1)

Country Link
FR (1) FR2234824A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520874A1 (en) * 1982-01-29 1983-08-05 Bordeaux I Labo Meca Physique Metallic specimen fatigue testing bench - measures energy balance of resonating system with specimen two inertial masses positioned between
CN104990820A (en) * 2015-07-01 2015-10-21 河海大学 Electromagnetic multiaxial fatigue testing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520874A1 (en) * 1982-01-29 1983-08-05 Bordeaux I Labo Meca Physique Metallic specimen fatigue testing bench - measures energy balance of resonating system with specimen two inertial masses positioned between
CN104990820A (en) * 2015-07-01 2015-10-21 河海大学 Electromagnetic multiaxial fatigue testing machine
CN104990820B (en) * 2015-07-01 2017-07-18 河海大学 Electromagnetic type multiaxle fatigue experimental machine

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Legal Events

Date Code Title Description
ST Notification of lapse