[go: up one dir, main page]

WO2020201664A3 - Advantageous system for evaluating the damage to a workpiece of composite material - Google Patents

Advantageous system for evaluating the damage to a workpiece of composite material Download PDF

Info

Publication number
WO2020201664A3
WO2020201664A3 PCT/FR2020/050615 FR2020050615W WO2020201664A3 WO 2020201664 A3 WO2020201664 A3 WO 2020201664A3 FR 2020050615 W FR2020050615 W FR 2020050615W WO 2020201664 A3 WO2020201664 A3 WO 2020201664A3
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
composite material
evaluating
damage
advantageous system
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.)
Ceased
Application number
PCT/FR2020/050615
Other languages
French (fr)
Other versions
WO2020201664A2 (en
Inventor
Florent Georges Jean-Pierre BOUILLON
Patrick CAZABAT
Anne Bessette
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.)
Safran Ceramics SA
Original Assignee
Safran Ceramics SA
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 Safran Ceramics SA filed Critical Safran Ceramics SA
Publication of WO2020201664A2 publication Critical patent/WO2020201664A2/en
Publication of WO2020201664A3 publication Critical patent/WO2020201664A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The invention relates to an advantageous system (1) for evaluating the damage to a workpiece (3) of composite material, comprising at least: - the workpiece of composite material, which comprises a fibre reinforcement which is densified by a matrix having at least one electrically conductive phase, - a clamping device (5) which conducts electricity and comprises electrical conductors (52a; 52b) clamped around the workpiece, - an electrical generator (7) which is connected to the electrical conductors and configured to circulate an electrical current in the workpiece, and - a processing unit (9) which is connected to the electrical conductors and configured to determine the resistance or resistivity of the workpiece and to compare the the resistance or resistivity determined with a predetermined value.
PCT/FR2020/050615 2019-04-01 2020-03-20 Advantageous system for evaluating the damage to a workpiece of composite material Ceased WO2020201664A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1903443 2019-04-01
FR1903443A FR3094478B1 (en) 2019-04-01 2019-04-01 Useful system to assess the damage of a composite material part

Publications (2)

Publication Number Publication Date
WO2020201664A2 WO2020201664A2 (en) 2020-10-08
WO2020201664A3 true WO2020201664A3 (en) 2020-12-10

Family

ID=67514868

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2020/050615 Ceased WO2020201664A2 (en) 2019-04-01 2020-03-20 Advantageous system for evaluating the damage to a workpiece of composite material

Country Status (2)

Country Link
FR (1) FR3094478B1 (en)
WO (1) WO2020201664A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR771305A (en) * 1934-06-27 1934-10-04 Process for checking the quality of welds and devices for implementing this process
DE2905142A1 (en) * 1979-02-10 1980-08-14 Deta Akkumulatoren Testing relative shear strength of welds between lead straps - which are used to connect electrode plates in accumulators, by measuring electric resistance of welds
SU1696988A1 (en) * 1988-10-25 1991-12-07 Специальное Конструкторское Бюро По Проектированию Приборов И Средств Автоматизации Sheet materials humidity capacitor sensing head
US6050136A (en) * 1997-04-16 2000-04-18 Paul E. Hawkinson Company Tire defect detection employing electrical arcing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5525915A (en) * 1995-01-27 1996-06-11 Hi-Test Detection Instruments Ltd. Electrical conductivity tester for ropes
US20120235693A1 (en) * 2011-03-20 2012-09-20 Hong Feng Ceramic Crack Inspection
US9678029B2 (en) * 2014-08-22 2017-06-13 Honeywell International Inc. Oxidation catalyst detector for aircraft components

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR771305A (en) * 1934-06-27 1934-10-04 Process for checking the quality of welds and devices for implementing this process
DE2905142A1 (en) * 1979-02-10 1980-08-14 Deta Akkumulatoren Testing relative shear strength of welds between lead straps - which are used to connect electrode plates in accumulators, by measuring electric resistance of welds
SU1696988A1 (en) * 1988-10-25 1991-12-07 Специальное Конструкторское Бюро По Проектированию Приборов И Средств Автоматизации Sheet materials humidity capacitor sensing head
US6050136A (en) * 1997-04-16 2000-04-18 Paul E. Hawkinson Company Tire defect detection employing electrical arcing

Also Published As

Publication number Publication date
FR3094478A1 (en) 2020-10-02
FR3094478B1 (en) 2021-03-19
WO2020201664A2 (en) 2020-10-08

Similar Documents

Publication Publication Date Title
EP3845170A3 (en) Partially conductive clamp arm pad to enable electrode wear through and minimize short circuiting
BR112013002045A2 (en) TORSION APPARATUS AND TORSION METHOD FOR TWISTING PREFORMED BAR CONDUCTORS, FOR ELECTRIC MACHINE BAR TYPE WINDINGS
US8494803B2 (en) Device for testing an electrical component
WO2019025574A8 (en) Method, apparatus and computer program for determining an impedance of an electrically conducting device
US20160261112A1 (en) Phase balancing in three-phase system
CN103235246B (en) The aviation wire experimental provision of resistance to electric arc and experimental technique thereof
CN103140931B (en) Circuit arrangement for setting the potential of a photovoltaic generator
WO2020201664A3 (en) Advantageous system for evaluating the damage to a workpiece of composite material
ATE557284T1 (en) SHORT CIRCUIT DETECTION
EP1950575A3 (en) Method and apparatus for determining impedance of live-earth loop of electrical power supply
CN102549415B (en) Method for Electrical Characterization of Composite Materials Used in Aircraft Manufacturing
CN107422188B (en) A resistivity measurement system and method for DC ground electrode arm concrete
IL184166A (en) Wire strike system
EP3176903A3 (en) Power distribution system
CA2791657A1 (en) Component detection device and component detection method
CN110073563B (en) Overcurrent protection device for electric load and connecting circuit thereof
IN2012DN00430A (en)
WO2021260201A3 (en) Apparatus for heating aerosolisable material
WO2021032450A3 (en) Chuck
CN106660458A (en) Energy supply system for motor vehicles with electric drive or hybrid drive
US9912214B2 (en) Wire-wound stator having phases with difference in temperature-responsive electrical resistance
MX2022004095A (en) Apparatus for purifying water.
RU165373U1 (en) DIODE RESISTOR BLOCK FOR THE SYSTEM OF ELECTROCHEMICAL PROTECTION OF METAL STRUCTURES FROM CORROSION
CN220797799U (en) Gold thread detects protection circuit, gold thread module and battery protection shield
CN205038309U (en) Cooperation thyristor selects load circuit of looks controller use

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20731167

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20731167

Country of ref document: EP

Kind code of ref document: A2