ES2051468T3 - Procedimiento para la determinacion de las longitudes de grietas. - Google Patents
Procedimiento para la determinacion de las longitudes de grietas.Info
- Publication number
- ES2051468T3 ES2051468T3 ES90301344T ES90301344T ES2051468T3 ES 2051468 T3 ES2051468 T3 ES 2051468T3 ES 90301344 T ES90301344 T ES 90301344T ES 90301344 T ES90301344 T ES 90301344T ES 2051468 T3 ES2051468 T3 ES 2051468T3
- Authority
- ES
- Spain
- Prior art keywords
- crack
- measured
- tension
- lengths
- determination
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/20—Investigating the presence of flaws
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
- G01N2203/0066—Propagation of crack
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/027—Specimens with holes or notches
Landscapes
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
SE PROVEE UN METODO PARA MEDIR EL CRECIMIENTO DE RAJADURAS EN UN SOLIDO (10) QUE INCLUYE UN SENSOR QUE UTILIZA MEDICIONES DE CAIDA DE VOLTAJE O PETENCIAL A LO LARGO DE UNA RAJADURA PREFORMADA Y QUE SE PROPAGA (20). PREFERENTEMENTE EL SENSOR REPRESENTA UN COMPONENTE ESTRUCTURAL Y SE EXPONE A UN MEDIO AMBIENTE AGRESIVO COMO ES EL QUE CORRESPONDE A COMPONENTES ESTRUCTURALES. LOS VALORES MEDIDOS DE TENSION SE GRAFICAN EN FUNCION DE LA DISTANCIA A LA QUE SE MIDE LA TENSION MEDIANTE UNA PLURALIDAD DE PARES DE PROBETAS (26, 28, 30) Y SE OBTIENE VALORES DE INTERCEPCION QUE SE UTILIZAN EN COMBINACION CON LONGITUDES DE RAJADURAS PREVIAMENTE MEDIDAS AL CALCULAR LONGITUDES DE RAJADURAS SUBSIGUIENTES A UNA RAJADURA QUE SE PROPAGA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/308,291 US4924708A (en) | 1989-02-09 | 1989-02-09 | Method for calculating crack lengths of conductive sensors |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2051468T3 true ES2051468T3 (es) | 1994-06-16 |
Family
ID=23193371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90301344T Expired - Lifetime ES2051468T3 (es) | 1989-02-09 | 1990-02-08 | Procedimiento para la determinacion de las longitudes de grietas. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4924708A (es) |
EP (1) | EP0382532B1 (es) |
JP (1) | JPH0690169B2 (es) |
DE (1) | DE69008211T2 (es) |
ES (1) | ES2051468T3 (es) |
FI (1) | FI96994C (es) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5171517A (en) * | 1990-12-10 | 1992-12-15 | General Electric Company | Method for monitoring corrosion on a member in a nuclear reactor core |
US5122330A (en) * | 1990-12-10 | 1992-06-16 | General Electric Company | Sensor for monitoring corrosion on a member in a nuclear reactor core |
US5417116A (en) * | 1992-05-13 | 1995-05-23 | Electric Power Research Institute, Inc. | Active stress specimen using an electromagnet and belleville washer |
JP3230840B2 (ja) * | 1992-06-10 | 2001-11-19 | 株式会社日立製作所 | 腐食環境センサー及び腐食環境制御装置 |
US5349869A (en) * | 1993-04-05 | 1994-09-27 | General Electric Company | Welded nickel alloy double-cantilever beam crack growth sensor and method for its fabrication |
US5369675A (en) * | 1993-06-25 | 1994-11-29 | General Electric Company | Remote load activating mechanisms |
US5386442A (en) * | 1993-06-25 | 1995-01-31 | General Electric Company | Method and apparatus for controlling the load on double cantilever beam sensors |
JP2840728B2 (ja) * | 1993-10-06 | 1998-12-24 | 工業技術院長 | 構造用材料のクラック検知方法 |
FR2725789B1 (fr) * | 1994-10-12 | 1997-01-03 | Snecma | Dispositif et procede de mesure simultanee de l'etendue et de la temperature d'une fissure a la surface d'un corps solide electriquement conducteur |
US5861559A (en) * | 1997-10-17 | 1999-01-19 | General Electric Company | Double cantilever beam crack growth sensor |
US7949545B1 (en) | 2004-05-03 | 2011-05-24 | The Medical RecordBank, Inc. | Method and apparatus for providing a centralized medical record system |
US7185545B2 (en) * | 2004-12-29 | 2007-03-06 | General Electric Company | Instrumentation and method for monitoring change in electric potential to detect crack growth |
US7519487B2 (en) * | 2006-03-06 | 2009-04-14 | Technion Research And Development Foundation Ltd. | System and method for depth determination of cracks in conducting structures |
US8181541B2 (en) * | 2010-05-14 | 2012-05-22 | Bertec Corporation | Low profile transducer with high moment capacity |
US11604106B2 (en) | 2013-10-05 | 2023-03-14 | Bertec Limited | Force measurement assembly |
US9032817B2 (en) | 2013-10-05 | 2015-05-19 | Bertec Limited | Low profile load transducer |
US10765936B2 (en) | 2013-10-05 | 2020-09-08 | Bertec Limited | Force measurement system |
US10527508B2 (en) | 2013-10-05 | 2020-01-07 | Bertec Limited | Force measurement system and a method of calibrating the same |
US11054325B2 (en) | 2013-10-05 | 2021-07-06 | Bertec Limited | Force measurement system |
US11262258B2 (en) | 2013-10-05 | 2022-03-01 | Bertec Limited | Force measurement system |
US10126186B2 (en) | 2013-10-05 | 2018-11-13 | Bertec Limited | Load transducer system configured to correct for measurement errors in the output forces and/or moments of the system |
US9404823B1 (en) | 2013-10-05 | 2016-08-02 | Bertec Limited | Load transducer and force measurement assembly using the same |
US9778119B2 (en) | 2013-10-05 | 2017-10-03 | Bertec Limited | Load transducer and force measurement assembly using the same |
CN105067439A (zh) * | 2015-08-26 | 2015-11-18 | 中国特种设备检测研究院 | 一种裂纹尖端应变场传感器及其测量方法 |
US9513200B1 (en) * | 2015-11-04 | 2016-12-06 | Rolls-Royce Corporation | Determination of a threshold crack length |
US10377118B2 (en) * | 2016-12-05 | 2019-08-13 | The Boeing Company | Preparing laminate materials for testing |
US11016047B2 (en) * | 2017-08-25 | 2021-05-25 | 3M Innovative Properties Company | Temperature-corrected control data for verifying of structural integrity of materials |
CN110261294B (zh) * | 2019-06-04 | 2022-04-19 | 中国船舶重工集团公司第七二五研究所 | 一种模拟深海环境下裂纹区金属腐蚀电化学试验装置 |
US11850078B1 (en) | 2020-01-04 | 2023-12-26 | Bertec Corporation | Force measurement system |
CN112254862A (zh) * | 2020-10-26 | 2021-01-22 | 苏州大学 | 基于裂纹传感的压电式多维传感器 |
CN114216590B (zh) * | 2021-11-24 | 2023-01-13 | 吉林大学 | 一种仿蝎子狭缝压力传感器及其制造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003246A (en) * | 1975-08-08 | 1977-01-18 | Mts Systems Corporation | Specimen crack stress intensity control loop for test device |
US4149406A (en) * | 1977-10-31 | 1979-04-17 | Russenberger Max E | Method and apparatus for determining the time dependency of the length of a fissure in a test specimen during a fracture test |
US4452087A (en) * | 1982-04-05 | 1984-06-05 | Antonio Nicholas F D | Pipeline monitoring system |
US4535629A (en) * | 1984-03-16 | 1985-08-20 | Chamberlain Manufacturing Corporation | Method and apparatus for structural monitoring with acoustic emission and using pattern recognition |
FR2580403B1 (fr) * | 1985-04-11 | 1988-05-13 | Syrov Alexandr | Procede de determination des parametres d'une fissure et dispositif pour sa mise en oeuvre |
US4677855A (en) * | 1985-12-19 | 1987-07-07 | Electric Power Research Institute, Inc. | Method for measuring damage to structural components |
-
1989
- 1989-02-09 US US07/308,291 patent/US4924708A/en not_active Expired - Fee Related
- 1989-12-27 FI FI896280A patent/FI96994C/fi not_active IP Right Cessation
-
1990
- 1990-02-08 ES ES90301344T patent/ES2051468T3/es not_active Expired - Lifetime
- 1990-02-08 DE DE69008211T patent/DE69008211T2/de not_active Expired - Fee Related
- 1990-02-08 EP EP90301344A patent/EP0382532B1/en not_active Expired - Lifetime
- 1990-02-08 JP JP2027344A patent/JPH0690169B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0382532B1 (en) | 1994-04-20 |
JPH02259555A (ja) | 1990-10-22 |
FI96994B (fi) | 1996-06-14 |
DE69008211T2 (de) | 1994-09-29 |
FI96994C (fi) | 1996-09-25 |
US4924708A (en) | 1990-05-15 |
JPH0690169B2 (ja) | 1994-11-14 |
DE69008211D1 (de) | 1994-05-26 |
EP0382532A1 (en) | 1990-08-16 |
FI896280A0 (fi) | 1989-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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