JPS5636042A - Measuring method for material characteristic value - Google Patents
Measuring method for material characteristic valueInfo
- 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
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
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) |
-
1979
- 1979-08-31 JP JP11215879A patent/JPS5636042A/en active Pending
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