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 armsInfo
- 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
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.
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)
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 |
-
1973
- 1973-06-25 FR FR7323069A patent/FR2234824A5/en not_active Expired
Cited By (3)
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 |