GB1332148A - Method of indicating the expenditure of the fatigue life of materials - Google Patents

Method of indicating the expenditure of the fatigue life of materials

Info

Publication number
GB1332148A
GB1332148A GB6140770A GB6140770A GB1332148A GB 1332148 A GB1332148 A GB 1332148A GB 6140770 A GB6140770 A GB 6140770A GB 6140770 A GB6140770 A GB 6140770A GB 1332148 A GB1332148 A GB 1332148A
Authority
GB
United Kingdom
Prior art keywords
fatigue life
film
expenditure
pattern
indicating
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
GB6140770A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan 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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1332148A publication Critical patent/GB1332148A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1332148 Fatigue Testing NIPPON KOKAN K K 29 Dec 1970 [27 Dec 1969] 61407/70 Heading G1S The extent to which the fatigue life of a structure 1 has been expended is determined by means of a transparent film 2 which is such that it polarizes light when stressed and which is adhered to the structure 1. The photo-elastic pattern produced by stressing of film 2 is viewed by means of a polarizing film 4. The magnitude of the pattern is related to the extent of fatigue life expenditure and the pattern may be compared to standard patterns. The film 2 may be applied directly to the structure 1 as in Fig. 1 (not shown), or indirectly via a further member Figs. 4, 6, 7 and 8, (not shown). The transparent film may be a composition consisting of 100 parts nylon and 50 parts polyamide.
GB6140770A 1969-12-27 1970-12-29 Method of indicating the expenditure of the fatigue life of materials Expired GB1332148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10493469A JPS5418157B1 (en) 1969-12-27 1969-12-27

Publications (1)

Publication Number Publication Date
GB1332148A true GB1332148A (en) 1973-10-03

Family

ID=14393909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6140770A Expired GB1332148A (en) 1969-12-27 1970-12-29 Method of indicating the expenditure of the fatigue life of materials

Country Status (8)

Country Link
JP (1) JPS5418157B1 (en)
BE (1) BE760876A (en)
CH (1) CH539838A (en)
CS (1) CS173576B2 (en)
DE (1) DE2063913C3 (en)
FR (1) FR2074341A5 (en)
GB (1) GB1332148A (en)
NL (1) NL7018897A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194256A (en) * 1986-08-13 1988-03-02 Dr Ian Michael Hutchings Strain indication in webbing straps and ropes
EP1691750B1 (en) * 2003-12-02 2016-04-27 SCA Hygiene Products AB Disposable absorbent article having tension indicators

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749836C3 (en) * 1977-11-08 1980-07-03 Dornier System Gmbh, 7990 Friedrichshafen Non-destructive testing of component fatigue
DE3144379A1 (en) * 1981-11-07 1983-05-19 Carl Schenck Ag, 6100 Darmstadt "METHOD FOR CARRYING OUT CRACK EXAMINATIONS AND TEST BODY FOR CARRYING OUT THE METHOD"
DE3723450A1 (en) * 1987-07-16 1989-01-26 Audi Ag Device for detecting overloads in components made of fibre-reinforced plastics

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194256A (en) * 1986-08-13 1988-03-02 Dr Ian Michael Hutchings Strain indication in webbing straps and ropes
GB2194256B (en) * 1986-08-13 1991-03-06 Dr Ian Michael Hutchings Improvements in and related to webbing straps and ropes
EP1691750B1 (en) * 2003-12-02 2016-04-27 SCA Hygiene Products AB Disposable absorbent article having tension indicators

Also Published As

Publication number Publication date
JPS5418157B1 (en) 1979-07-05
DE2063913C3 (en) 1974-10-17
BE760876A (en) 1971-05-27
DE2063913B2 (en) 1973-12-13
DE2063913A1 (en) 1972-02-03
CH539838A (en) 1973-07-31
CS173576B2 (en) 1977-02-28
NL7018897A (en) 1971-06-29
FR2074341A5 (en) 1971-10-01

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Legal Events

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