JPS5636042A - Measuring method for material characteristic value - Google Patents

Measuring method for material characteristic value

Info

Publication number
JPS5636042A
JPS5636042A JP11215879A JP11215879A JPS5636042A JP S5636042 A JPS5636042 A JP S5636042A JP 11215879 A JP11215879 A JP 11215879A JP 11215879 A JP11215879 A JP 11215879A JP S5636042 A JPS5636042 A JP S5636042A
Authority
JP
Japan
Prior art keywords
distortion
value
ratio
loosening
stress
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
JP11215879A
Other languages
Japanese (ja)
Inventor
Takeshi Kondo
Takashi Tagawa
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.)
Unitika Ltd
Original Assignee
Unitika 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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP11215879A priority Critical patent/JPS5636042A/en
Publication of JPS5636042A publication Critical patent/JPS5636042A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: To measure the materials characteristic value related to the production history thereof by a method wherein stress (or distortion) and elasticity ratio at the time when solid materials are transformed are measured and the value of stress (or distortion) at the point where the elasticity ratio is the extreme is adopted.
CONSTITUTION: Stress (or distortion) and elasticity ratio being measured as solid materials are transformed, maximum and minimum points appearing on a curved line obtained are named sequentially Y1, Y2, Y3..., and the materials characteristic value is evaluated especially by adopting the value at the point Y3. For instance, the ratio of loosening [100(LD-LO)/LD, where LD is the longest dimension of the material in extension and LO is the dimension after loosening of the material] is evaluated by adopting the value of distortion at Y3. As to the materials whose ratio of loosening is small and for which no clear maximum appears at the point Y3, appropriate shrinkage treatment is applied thereto and after that the value of distortion (%)ε Y3 before shrinkage treatment is to be found by using the formula [εY3 s is the value of distortion (%) after shrinkage treatment; Sh is the ratio of shrinkage (%) of the material on the occasion of the shrinkage treatment].
COPYRIGHT: (C)1981,JPO&Japio
JP11215879A 1979-08-31 1979-08-31 Measuring method for material characteristic value Pending JPS5636042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11215879A JPS5636042A (en) 1979-08-31 1979-08-31 Measuring method for material characteristic value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11215879A JPS5636042A (en) 1979-08-31 1979-08-31 Measuring method for material characteristic value

Publications (1)

Publication Number Publication Date
JPS5636042A true JPS5636042A (en) 1981-04-09

Family

ID=14579681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11215879A Pending JPS5636042A (en) 1979-08-31 1979-08-31 Measuring method for material characteristic value

Country Status (1)

Country Link
JP (1) JPS5636042A (en)

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