GB1523295A - Method and apparatus for inspecting stratified material - Google Patents

Method and apparatus for inspecting stratified material

Info

Publication number
GB1523295A
GB1523295A GB4222575A GB4222575A GB1523295A GB 1523295 A GB1523295 A GB 1523295A GB 4222575 A GB4222575 A GB 4222575A GB 4222575 A GB4222575 A GB 4222575A GB 1523295 A GB1523295 A GB 1523295A
Authority
GB
United Kingdom
Prior art keywords
test
piezo
layers
testing
closed cells
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
GB4222575A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB4222575A priority Critical patent/GB1523295A/en
Publication of GB1523295A publication Critical patent/GB1523295A/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
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/223—Supports, positioning or alignment in fixed situation
    • 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
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0044—Pneumatic means
    • G01N2203/0046—Vacuum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0231—Composite or layered materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects

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

1523295 Testing bonds between layers of material SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 Oct 1975 42225/75 Heading G1G and G1S In testing the bond between layers of a stratified material by observing its response to vibrations, the area of the material under test is subjected to a reduced pressure. Either the whole test piece (6) may be enclosed in a vacuum chamber (1), Fig. 1 (not shown) or a local vacuum may be created around the test probe 35 within a chamber 28, having resilient sealing means, e.g. a relatively soft foamed rubber layer 33 with semi-closed cells on a more rigid layer 34 of foamed rubber with closed cells. The probe comprises a Piezo-electric driver 13 and Piezo-electric pick-up 16, mild steel 14 and polymethylmethacrylate 15 and is supported on parallel linkages, counterbalanced by a weight 36, a spring 37 providing a constant static contact force, independent of orientation. The amplitude or phase of the picked up signals may be measured. The invention may be used to test polyurethane foam linings of tanks and light-weight panels of sandwich construction.
GB4222575A 1975-10-15 1975-10-15 Method and apparatus for inspecting stratified material Expired GB1523295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4222575A GB1523295A (en) 1975-10-15 1975-10-15 Method and apparatus for inspecting stratified material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4222575A GB1523295A (en) 1975-10-15 1975-10-15 Method and apparatus for inspecting stratified material

Publications (1)

Publication Number Publication Date
GB1523295A true GB1523295A (en) 1978-08-31

Family

ID=10423421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4222575A Expired GB1523295A (en) 1975-10-15 1975-10-15 Method and apparatus for inspecting stratified material

Country Status (1)

Country Link
GB (1) GB1523295A (en)

Cited By (8)

* 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
GB2138138A (en) * 1983-04-13 1984-10-17 Atomic Energy Authority Uk Dynamic method for the detection of discontinuities in a body
GB2149915A (en) * 1983-11-02 1985-06-19 British Nuclear Fuels Ltd An improved method of ultrasonic inspection
US4542639A (en) * 1983-03-31 1985-09-24 National Research Development Corporation Testing of structures by impact
US4972720A (en) * 1989-09-20 1990-11-27 The United States Of America As Represented By The Secretary Of Commerce Thermal technique for determining interface and/or interply strength in composites
EP0471632A1 (en) * 1990-08-17 1992-02-19 Societe De Fabrication Maty( Sfm) Sarl Method and device for testing time-pieces and articles of jewellery
EP1767921A1 (en) * 2005-09-26 2007-03-28 DSMIP Assets B.V. Method for determining the suitability of a material as infill material in artificial turf systems
FR2932268A1 (en) * 2008-06-06 2009-12-11 Cryospace Air Liquide Aerospat Thermic isolation coating e.g. PVC foam type coating, adherence non-destructive control method for cryogenic reservoir of accelerator in spatial field, involves analyzing acoustic response of coating to detect adherence defect of coating

Cited By (11)

* 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
US4542639A (en) * 1983-03-31 1985-09-24 National Research Development Corporation Testing of structures by impact
GB2138138A (en) * 1983-04-13 1984-10-17 Atomic Energy Authority Uk Dynamic method for the detection of discontinuities in a body
GB2149915A (en) * 1983-11-02 1985-06-19 British Nuclear Fuels Ltd An improved method of ultrasonic inspection
US4972720A (en) * 1989-09-20 1990-11-27 The United States Of America As Represented By The Secretary Of Commerce Thermal technique for determining interface and/or interply strength in composites
EP0471632A1 (en) * 1990-08-17 1992-02-19 Societe De Fabrication Maty( Sfm) Sarl Method and device for testing time-pieces and articles of jewellery
FR2665958A1 (en) * 1990-08-17 1992-02-21 Maty Sarl Fabrication METHOD AND APPARATUS FOR CONTROLLING WATCHES AND / OR JEWELERY PIECES.
US5245875A (en) * 1990-08-17 1993-09-21 Societe De Fabrication Maty Sarl Process and device for checking clock and/or jewellery components
EP1767921A1 (en) * 2005-09-26 2007-03-28 DSMIP Assets B.V. Method for determining the suitability of a material as infill material in artificial turf systems
WO2007039191A1 (en) * 2005-09-26 2007-04-12 Dsm Ip Assets B.V. Method for determining the suitability of a material as infill material in artificial turf systems
FR2932268A1 (en) * 2008-06-06 2009-12-11 Cryospace Air Liquide Aerospat Thermic isolation coating e.g. PVC foam type coating, adherence non-destructive control method for cryogenic reservoir of accelerator in spatial field, involves analyzing acoustic response of coating to detect adherence defect of coating

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee