GB878401A - Improvements in bending fatigue test apparatus - Google Patents
Improvements in bending fatigue test apparatusInfo
- Publication number
- GB878401A GB878401A GB4168858A GB4168858A GB878401A GB 878401 A GB878401 A GB 878401A GB 4168858 A GB4168858 A GB 4168858A GB 4168858 A GB4168858 A GB 4168858A GB 878401 A GB878401 A GB 878401A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rockers
- specimen
- driving
- fatigue
- dec
- 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
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
-
- 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
- G01N2203/0023—Bending
Landscapes
- Physics & Mathematics (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
878,401. Testing bending-fatigue of materials AVIATION, MINISTER OF. Dec. 22, 1959 [Dec. 24, 1958], No. 41688/58. Class 106 (2). [Also in Group XXIV] Apparatus for testing bending-fatigue of wire, rod, strip and the like comprises a pair of cooperating cylindrical or part-cylindrical rockers 1, 2, mounted with their curved surfaces adjacent and oscillatable about parallel axes, clamping means 16, 17 for holding a specimen 9 so that it passes between the rockers 1, 2 in an inflected curve and means for imparting a rotary reciprocating motion to the rockers whereby the inflection is moved back and forth along the specimen. In the embodiment shown the specimen, in the form of a wire, lies in grooves 14 machined in the surfaces of the rockers. The rockers 1, 2 are mounted on shafts to which are fixed a second pair of co-operating rockers 3, 4, Fig. 3. These latter are interconnected by two strips 22, 23 and the lower rocker 4 is reciprocated by a crank (not shown) driven from an electric motor. The specimen is clamped between tiebars 16 and clamps 17 and is tensioned by use of a spring 21. A similar arrangement applies to the driving strips 22, 23. In use the specimen is oscillated until it breaks or it may be inspected after a given number of oscillations. The rockers may be made of insulating material and the circuit for the electric motor may be connected through the specimen, so that the driving motor will stop immediately the specimen breaks. Alternatively, the driving bands 22, 23 may be used in a similar way. Various other forms of test rocker are described, suited to different types of test piece and the upper rockers are adjustable in position to allow the use of larger rockers or a thicker test piece. The rockers may also be extended to carry several test specimens at one time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4168858A GB878401A (en) | 1958-12-24 | 1958-12-24 | Improvements in bending fatigue test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4168858A GB878401A (en) | 1958-12-24 | 1958-12-24 | Improvements in bending fatigue test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB878401A true GB878401A (en) | 1961-09-27 |
Family
ID=10420876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4168858A Expired GB878401A (en) | 1958-12-24 | 1958-12-24 | Improvements in bending fatigue test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB878401A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3009379A1 (en) * | 2013-07-30 | 2015-02-06 | Snecma | FATIGUE TEST MACHINE |
| CN113390871A (en) * | 2021-06-04 | 2021-09-14 | 青岛市产品质量检验研究院(青岛市产品质量安全风险监测中心) | Graphite alkene detects uses fixed clamping device |
-
1958
- 1958-12-24 GB GB4168858A patent/GB878401A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3009379A1 (en) * | 2013-07-30 | 2015-02-06 | Snecma | FATIGUE TEST MACHINE |
| CN113390871A (en) * | 2021-06-04 | 2021-09-14 | 青岛市产品质量检验研究院(青岛市产品质量安全风险监测中心) | Graphite alkene detects uses fixed clamping device |
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