GB2097122B - Method of detecting preferably continuously the presence of cracks the formation of cracks and the growth of cracks in constructions - Google Patents

Method of detecting preferably continuously the presence of cracks the formation of cracks and the growth of cracks in constructions

Info

Publication number
GB2097122B
GB2097122B GB8210768A GB8210768A GB2097122B GB 2097122 B GB2097122 B GB 2097122B GB 8210768 A GB8210768 A GB 8210768A GB 8210768 A GB8210768 A GB 8210768A GB 2097122 B GB2097122 B GB 2097122B
Authority
GB
United Kingdom
Prior art keywords
cracks
constructions
growth
formation
preferably continuously
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
GB8210768A
Other languages
English (en)
Other versions
GB2097122A (en
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.)
Saab Kockums AB
Original Assignee
Kockums AB
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 Kockums AB filed Critical Kockums AB
Publication of GB2097122A publication Critical patent/GB2097122A/en
Application granted granted Critical
Publication of GB2097122B publication Critical patent/GB2097122B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/14Investigating 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 using acoustic emission techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
    • G01S5/22Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
GB8210768A 1980-08-26 1981-08-18 Method of detecting preferably continuously the presence of cracks the formation of cracks and the growth of cracks in constructions Expired GB2097122B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8005963A SE440829B (sv) 1980-08-26 1980-08-26 Sett att detektera sprickforekomst, sprickbildning och spricktillvext i konstruktioner

Publications (2)

Publication Number Publication Date
GB2097122A GB2097122A (en) 1982-10-27
GB2097122B true GB2097122B (en) 1984-08-22

Family

ID=20341600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8210768A Expired GB2097122B (en) 1980-08-26 1981-08-18 Method of detecting preferably continuously the presence of cracks the formation of cracks and the growth of cracks in constructions

Country Status (13)

Country Link
US (1) US4481818A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS57501492A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU547990B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE890058A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1178706A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3152258A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK152599C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2489522B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2097122B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL8120316A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO152988C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE440829B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1982000718A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1187974A (en) * 1982-10-15 1985-05-28 Mervin R. Black Method and apparatus for monitoring cable integrity by acoustic emission
US4592034A (en) * 1982-11-15 1986-05-27 Cornell Research Foundation, Inc. Acoustic emission source location on plate-like structures using a small array of transducers
JPS59225374A (ja) * 1983-06-06 1984-12-18 Hitachi Ltd 音源位置標定方法とその装置
FR2558956B1 (fr) * 1984-01-26 1986-06-27 Metravib Sa Procede et dispositif de recherche et de caracterisation de defauts d'une structure metallique connue immergee
US4577487A (en) * 1984-12-14 1986-03-25 Dooley John G Pressure vessel testing
NL8503349A (nl) * 1985-12-04 1987-07-01 Smit Iso Maintenance Bv Werkwijze voor het onderzoeken van een offshoreconstructie op mechanische gebreken, en offshoreconstructie, uitgerust voor een dergelijk onderzoek.
US4956999A (en) * 1988-11-30 1990-09-18 Gp Taurio, Inc. Methods and apparatus for monitoring structural members subject to transient loads
US4901575A (en) * 1988-11-30 1990-02-20 Gp Taurio, Inc. Methods and apparatus for monitoring structural members subject to transient loads
US5255565A (en) * 1991-11-12 1993-10-26 Vibra-Metrics, Inc. Method and apparatus for monitoring multiple points on a vibrating structure
GB2326713A (en) * 1997-06-27 1998-12-30 Cogent Technology Limited Mole position location
NO20022450A (no) * 2002-05-23 2003-10-20 Naxys As Akustisk undervanns overvåkningssystem
JP2004085201A (ja) * 2002-08-22 2004-03-18 Chubu Electric Power Co Inc 振動源探査システム
FR2939510B1 (fr) * 2008-12-08 2010-12-31 Inst Francais Du Petrole Methode de detection et localisation de l'amorce de fissuration de type ssc dans un acier soumis a un milieu aqueux acide contenant des elements hydrogenants
MY163821A (en) * 2010-10-25 2017-10-31 Lockheed Corp Remote flooded member detection
RU2497109C2 (ru) * 2011-10-07 2013-10-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Комсомольский-на-Амуре государственный технический университет" (ФГБОУВПО "КнАГТУ") Способ механического испытания на сплющивание с анализом акустико-эмиссионных сигналов
AU2013356869B2 (en) * 2012-12-12 2017-02-09 Ernst Jacobus Gustav Pretorius Device and system for and a method of monitoring a cable for a physical disturbance
WO2025045381A1 (en) * 2023-09-01 2025-03-06 Framatome Gmbh A method for detecting a crack growth in a component of a plant or a vehicle and a corresponding system

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286224A (en) * 1965-02-15 1966-11-15 Gen Dynamics Corp Acoustic direction finding system
US3531764A (en) * 1969-05-12 1970-09-29 Sanders Associates Inc Wind compensated acoustic direction finder
DE2007490C1 (de) * 1970-02-19 1978-04-27 Fried. Krupp Gmbh Krupp Atlas- Elektronik Bremen, 2800 Bremen Vorrichtung zum Klassifizieren von Geräuschquellen
FR2091906B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1970-04-15 1973-12-21 Inst Francais Du Petrole
GB1415666A (en) * 1972-04-12 1975-11-26 Atomic Energy Authority Uk Methods and apparatus for the location of sources of pulse like signals
US3838593A (en) * 1972-11-06 1974-10-01 Exxon Research Engineering Co Acoustic leak location and detection system
US3924456A (en) * 1973-08-17 1975-12-09 Western Electric Co Methods and apparatus for detecting the presence of cracks in a workpiece by the use of stress waves emitted therefrom
JPS5248032B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-08-27 1977-12-07
DE2413544C2 (de) * 1974-03-21 1982-04-29 Fried. Krupp Gmbh, 4300 Essen Verfahren zum Bilden eines Summensignals und zweier Differenzsignale zum Anzeigen der Richtung einfallender Schallwellen und Vorrichtung zu seiner Ausübung
US4128011A (en) * 1974-07-16 1978-12-05 Savage Robert J Investigation of the soundness of structures
US3985024A (en) * 1975-02-28 1976-10-12 Grumman Corporation Acoustic emission process and system for improved flaw source location
US4033179A (en) * 1975-03-07 1977-07-05 Westinghouse Electric Corporation Acoustic emission monitoring system
US4009463A (en) * 1975-03-13 1977-02-22 Westinghouse Electric Corporation Acoustic emission monitoring system
JPS5823895B2 (ja) * 1976-05-25 1983-05-18 岩崎通信機株式会社 振動源位置検出方法およびその装置
US4269065A (en) * 1978-03-01 1981-05-26 Clark Robert N Ultrasonic detector apparatus
JPS5585269A (en) * 1978-12-23 1980-06-27 Nippon Ii T L Kk Device for ranging sound source and the like
US4380172A (en) * 1981-02-19 1983-04-19 General Electric Company On-line rotor crack detection

Also Published As

Publication number Publication date
DK182182A (da) 1982-04-23
WO1982000718A1 (en) 1982-03-04
NO821321L (no) 1982-04-23
CA1178706A (en) 1984-11-27
FR2489522A1 (fr) 1982-03-05
US4481818A (en) 1984-11-13
FR2489522B1 (fr) 1985-11-15
NO152988C (no) 1986-01-02
SE440829B (sv) 1985-08-19
AU547990B2 (en) 1985-11-14
BE890058A (fr) 1981-12-16
GB2097122A (en) 1982-10-27
DK152599C (da) 1988-09-19
NO152988B (no) 1985-09-16
DK152599B (da) 1988-03-21
DE3152258A1 (en) 1982-10-07
SE8005963L (sv) 1982-02-27
AU7537481A (en) 1982-03-17
NL8120316A (nl) 1982-07-01
JPS57501492A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-08-19

Similar Documents

Publication Publication Date Title
GB2097122B (en) Method of detecting preferably continuously the presence of cracks the formation of cracks and the growth of cracks in constructions
EP0286994A3 (en) Method and arrangement for the detection of surface flaws
JPS575682A (en) Smoking article and method
EP0290227A3 (en) Surface pit detection system and method
GB2149927B (en) Belt construction and method of making the same
GB2152088B (en) Detection of deterioration in rope
PH17019A (en) 4-piperidyl-or dehydropiperidyl-urea derivatives and method of use
JPS57551A (en) Immunologic measuring method and means of enzyme
JPS5756383A (en) Si3n4 ceramic product with low density outer layer and method thereof
ZA815318B (en) Method of and means forr weather modification
JPS56169846A (en) Paper like article and method
GB8919060D0 (en) Method and means for measuring the depth of cracks
YU192079A (en) Method of detecting cracks in surfaces
GB2069919B (en) Marine bollard and method of manufacturing same
BG45966A1 (en) Method for determination of the cracks in concrete and similar materials
GB2089973B (en) Detection of defects in objects
CS221996B2 (en) Fungicide means and method of making the active substances
ES532287A0 (es) Recipiente criogenico aislado y metodo de aislamiento
DE3162049D1 (en) Method for the preparation of 2-halo-3-sulfonyl-acrylonitriles and their use
DE3160026D1 (en) Dipotassium pentapropionate and method of preparing the same
JPS56159457A (en) Strong wall and establishing method thereof
HUT51769A (en) Method for determining and controlling the change of extract content
JPS57110209A (en) Shichihoyaki like decorative article and method
GB2075939B (en) Offshore structure and method
JPS56128342A (en) Raised structure and method

Legal Events

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

Effective date: 19920818