JPS57168140A - Fatigue crack generating device - Google Patents

Fatigue crack generating device

Info

Publication number
JPS57168140A
JPS57168140A JP5315481A JP5315481A JPS57168140A JP S57168140 A JPS57168140 A JP S57168140A JP 5315481 A JP5315481 A JP 5315481A JP 5315481 A JP5315481 A JP 5315481A JP S57168140 A JPS57168140 A JP S57168140A
Authority
JP
Japan
Prior art keywords
test piece
slit
plate
pressure
pressurized liquid
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.)
Pending
Application number
JP5315481A
Other languages
Japanese (ja)
Inventor
Tetsuyuki Hiroe
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP5315481A priority Critical patent/JPS57168140A/en
Publication of JPS57168140A publication Critical patent/JPS57168140A/en
Pending 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
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
    • 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
    • G01N2203/0048—Hydraulic means

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

PURPOSE:To make it possible to generate cracks in different directions and different lengths in a test piece whose surface has a concave part for developing fatigue cracks by holding the test piece between a pressure load plate that has a hollow part and a compression plate and supplying repeatedly pressurized liquid to the hollow part. CONSTITUTION:A test piece 11 that has a slit 12 where fatigue cracks will develop has its upper and lower faces respectively pressed by a compression plate 13 and a pressure load plate 14 with the slit 12 at the center of the pressing by the plate 14. As the test piece 11 is pressed with a constant load P through the compression plate 13 and the pressure load plate 14 by operating compression rods 15a and 15b from above and below, pressurized liquid is repeatedly supplied to the hollow section 16 through a fluid supply route 17 from a pressurized liquid supply tube 18. During this the pressure in the hollow section 16 is completely sealed by an O-ring 19 and a back-up ring 20. Desired fatigue cracks starting from the slit 12 develop due to repeated pressure P at the slit 12 of the test piece 11.
JP5315481A 1981-04-10 1981-04-10 Fatigue crack generating device Pending JPS57168140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5315481A JPS57168140A (en) 1981-04-10 1981-04-10 Fatigue crack generating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5315481A JPS57168140A (en) 1981-04-10 1981-04-10 Fatigue crack generating device

Publications (1)

Publication Number Publication Date
JPS57168140A true JPS57168140A (en) 1982-10-16

Family

ID=12934917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5315481A Pending JPS57168140A (en) 1981-04-10 1981-04-10 Fatigue crack generating device

Country Status (1)

Country Link
JP (1) JPS57168140A (en)

Similar Documents

Publication Publication Date Title
DK0471000T3 (en) Improved flow control system for pressure measurement
FR2350884B3 (en)
JPS57168140A (en) Fatigue crack generating device
CH609581A5 (en) Process and device for forming gas bubbles, for example with a view to flotation
US2353760A (en) Pressure-membrane extraction apparatus
FR2364710A1 (en) IMPROVEMENTS TO EQUIPMENT INTENDED FOR THE MANUFACTURE OF EXPANSION BELLOWS FOR PIPING
SE8502821D0 (en) COMPLETE BODY DEVICE
ES554852A0 (en) PROCEDURE FOR THE DOSAGE OF SMALL AMOUNTS OF A LIQUEFIED GAS, LOW BOILING POINT
GR880100228A (en) Apparatus used for an grinding material injection
JPS5578537A (en) Gang bonding pressure welding tool
JPS55112891A (en) Roller pump apparatus
ES2105808T3 (en) DEVICE FOR MEASURING SURFACE TENSION.
US3692614A (en) Plastic service fitting and method and apparatus for attaching same
GB1172892A (en) Method of and apparatus for Dispensing Liquid by Gas Pressure
ATE7272T1 (en) APPARATUS FOR SUPPLYING A LIQUID TO AN APPLICATION DEVICE.
JPS6447429A (en) Bubble generation device
JPS56160637A (en) Load tester
JPS5525943A (en) Ion source device
JPS55124232A (en) Application method of substrate treatment solution and the device therefor
JPS57184942A (en) Apparatus for inspecting compression resistance of hose with coupling
JPS5756032A (en) Ultrasonic emulsifier
JPS5562340A (en) Vibration test unit for fluid apparatus
JPS5629139A (en) Test method of watertightness for hoisting unit
JPS5247569A (en) Vapor-liquid contact apparatus
JPS571622A (en) Discharge processing device