JPS57184948A - Creep testing device - Google Patents

Creep testing device

Info

Publication number
JPS57184948A
JPS57184948A JP7031781A JP7031781A JPS57184948A JP S57184948 A JPS57184948 A JP S57184948A JP 7031781 A JP7031781 A JP 7031781A JP 7031781 A JP7031781 A JP 7031781A JP S57184948 A JPS57184948 A JP S57184948A
Authority
JP
Japan
Prior art keywords
specimen
region
measured
length
load
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.)
Granted
Application number
JP7031781A
Other languages
Japanese (ja)
Other versions
JPS6149612B2 (en
Inventor
Kenhachi Mihashi
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.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co 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 Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP7031781A priority Critical patent/JPS57184948A/en
Publication of JPS57184948A publication Critical patent/JPS57184948A/en
Publication of JPS6149612B2 publication Critical patent/JPS6149612B2/ja
Granted 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
    • G01N3/02—Details
    • G01N3/06—Special adaptations of indicating or recording means
    • G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording 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
    • G01N2203/0058—Kind of property studied
    • G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0071—Creep

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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To measure elongation and contraction of a specimen without dispersion by applying a load on the specimen wherein the length of a region to be measured is the part between marking lines whose optical characteristic is different from the other part of the surface, and scanning the part corresponding to the marking lines by a television camera and the like. CONSTITUTION:Two marking lines Q are provided on the specimen S such as rubber or the like and part between them is made to be the length of the region to be measured. The optical characteristics such as lightness is made different from the other region of the surface of the specimen. The load is applied so that the length of the region to be measured becomes long by a load applying means. The specimen S is scanned by the surface scanning device such as a television camera, and its output is given to a signal processor. A measuring range specifying signal is generated based on the output of the scanning device. The pulse signal corresponding to the length of the region to be measured is obtained, and the pulse interval T is measured. Even though a clamp and the like for holding the specimen is present in the scanning range, accurate measuring can be performed without the effect of the clamp.
JP7031781A 1981-05-11 1981-05-11 Creep testing device Granted JPS57184948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7031781A JPS57184948A (en) 1981-05-11 1981-05-11 Creep testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7031781A JPS57184948A (en) 1981-05-11 1981-05-11 Creep testing device

Publications (2)

Publication Number Publication Date
JPS57184948A true JPS57184948A (en) 1982-11-13
JPS6149612B2 JPS6149612B2 (en) 1986-10-30

Family

ID=13427947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7031781A Granted JPS57184948A (en) 1981-05-11 1981-05-11 Creep testing device

Country Status (1)

Country Link
JP (1) JPS57184948A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033028A (en) * 1983-08-04 1985-02-20 Toyo Seiki Seisakusho:Kk Tracing method of bench mark in tensile test or the like
JPS62231105A (en) * 1986-03-31 1987-10-09 Shimadzu Corp Displacement gauge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5355186A (en) * 1976-10-29 1978-05-19 Yokohama Rubber Co Ltd Tension tester

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5355186A (en) * 1976-10-29 1978-05-19 Yokohama Rubber Co Ltd Tension tester

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033028A (en) * 1983-08-04 1985-02-20 Toyo Seiki Seisakusho:Kk Tracing method of bench mark in tensile test or the like
JPH0259944B2 (en) * 1983-08-04 1990-12-13 Toyo Seiki Seisakusho Kk
JPS62231105A (en) * 1986-03-31 1987-10-09 Shimadzu Corp Displacement gauge

Also Published As

Publication number Publication date
JPS6149612B2 (en) 1986-10-30

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