FR2240666A5 - Non-destructive testing for e.g. runways - provides data for dynamic characteristics by applying shock waves - Google Patents

Non-destructive testing for e.g. runways - provides data for dynamic characteristics by applying shock waves

Info

Publication number
FR2240666A5
FR2240666A5 FR7328758A FR7328758A FR2240666A5 FR 2240666 A5 FR2240666 A5 FR 2240666A5 FR 7328758 A FR7328758 A FR 7328758A FR 7328758 A FR7328758 A FR 7328758A FR 2240666 A5 FR2240666 A5 FR 2240666A5
Authority
FR
France
Prior art keywords
runways
provides data
shock waves
dynamic characteristics
destructive testing
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
FR7328758A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to FR7328758A priority Critical patent/FR2240666A5/en
Application granted granted Critical
Publication of FR2240666A5 publication Critical patent/FR2240666A5/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
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geophysics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

A non-destructive test equipment comprises a metal bar (1) perpendicular to the horizontal bed of material to be tested. Two series of strain gauges (A, B) are attached to the upper part of the circumference and are connected to a Wheatstone bridge (4). This is connected to amplifiers (6) and memory oscilloscope (7) and to a magnetic recorder (8). An electromagnet (15) is fixed to an upper plate above the bar (1) and retains a cylindrical weight (9) which imparts a shock to the bar when it is released. The required characteristics are calculated from the recorded results.
FR7328758A 1973-08-07 1973-08-07 Non-destructive testing for e.g. runways - provides data for dynamic characteristics by applying shock waves Expired FR2240666A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7328758A FR2240666A5 (en) 1973-08-07 1973-08-07 Non-destructive testing for e.g. runways - provides data for dynamic characteristics by applying shock waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7328758A FR2240666A5 (en) 1973-08-07 1973-08-07 Non-destructive testing for e.g. runways - provides data for dynamic characteristics by applying shock waves

Publications (1)

Publication Number Publication Date
FR2240666A5 true FR2240666A5 (en) 1975-03-07

Family

ID=9123656

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7328758A Expired FR2240666A5 (en) 1973-08-07 1973-08-07 Non-destructive testing for e.g. runways - provides data for dynamic characteristics by applying shock waves

Country Status (1)

Country Link
FR (1) FR2240666A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049090A1 (en) * 1980-10-01 1982-04-07 Burks, A. Edward and Green, J. Keith Testing mechanism for floors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049090A1 (en) * 1980-10-01 1982-04-07 Burks, A. Edward and Green, J. Keith Testing mechanism for floors

Similar Documents

Publication Publication Date Title
US3638478A (en) Structure for sand testing
GB1453262A (en) Testing load-bearing structures
US3854328A (en) Resiliency testing device
FR2281621A1 (en) MAGNETIC RECORDING METHOD AND MEDIA FOR TESTING MAGNETIC RECORDERS
DE3153050T1 (en) METHOD FOR NON-DESTRUCTION-FREE MEASUREMENT OF THE DURABILITY OF FERROMAGNETIC MATERIALS
FR2240666A5 (en) Non-destructive testing for e.g. runways - provides data for dynamic characteristics by applying shock waves
GB1348086A (en) Test method using acoustic emission and a self-contained device for for measuring and using the acoustic emission in order to work the method
GB1495278A (en) Compensation for weight-independent parameters in weighin
US3362216A (en) Apparatus for testing effects of torsional vibration
Ellwood et al. A tensile technique for materials testing at high strain rates
GB1517762A (en) Method of non-destructive testing
ES407891A1 (en) Hardness testing
Kunukkasseril et al. Impact experiments on shallow spherical shells
JPS5880542A (en) Detector for force-displacement characteristic of elastic body
US3720101A (en) Automatic spring rate plotter
GB1399947A (en) Hardness tester
Kenner On the use of quartz crystals in dynamic stress and force transducers: The ability of X-cut quartz crystals to correctly average nonuniform normal stress is ascertained using ball-drop experiments. A dynamic load transducer incorporating two crystals is also evaluated
SU894341A1 (en) Method and device for determination of structure load carrying element stressed condition
FR2287692A1 (en) Machine for testing creep and fatigue - has ram and vibrator engaging test specimen on columns
SU150281A1 (en) Device for mechanical testing of samples of materials under tension - compression
GB1019378A (en) Improvements in and relating to apparatus for the testing of materials under vibration and stress
SU903743A1 (en) Method of testing material for impact compression
Carlyle et al. Acoustic-emission fatigue analyzer: A new acoustic-emission instrument is used to delineate the relationship between sample load, acoustic-emission rate and number of fatigue cycles
SU637626A1 (en) Structural element testing method
FI60934B (en) SAETT ATT DEFINIERA UTMATTNINGSHAOLLFASTHET HOS FERROMAGNETISKT MATERIAL UTAN ATT BRYTA MATERIALET

Legal Events

Date Code Title Description
ST Notification of lapse