JPS5646443A - Fatigue preventing system for viscoelastic sample - Google Patents
Fatigue preventing system for viscoelastic sampleInfo
- Publication number
- JPS5646443A JPS5646443A JP12201279A JP12201279A JPS5646443A JP S5646443 A JPS5646443 A JP S5646443A JP 12201279 A JP12201279 A JP 12201279A JP 12201279 A JP12201279 A JP 12201279A JP S5646443 A JPS5646443 A JP S5646443A
- Authority
- JP
- Japan
- Prior art keywords
- stress
- vibration
- static
- displacement
- sample
- 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 prevent the fatigue of a test sample, by switching the setting reference value of the static tension by the stress measurement end signal during the measurement preparatory period of a vibration stress of 0 and at the same time detecting and monitoring the static stress to maintain it at 0 automatically.
CONSTITUTION: The viscoelastic measuring device gives the vibration and the static potential to the sample 16 by the driving device 12, and then detects the stress caused by displacement through the displacement detector 20 and the stress detector 22 each. This stress is then supplied to the microcomputer 24 to detect the degree of the vibration displacement and the stress puls their phase difference each and then calculated. And this result of calculation is sent to the reader 26 for display. Then the application of the vibration displacement is discontinued by the gate 40 and through the end command of the microcomputer, and at the same time the switch gate 36 is switched so as to change the static stress of 0 into the reference value of the comparator 32. Thus the stress is always detected an then kept automatically and constantly at the value of 0 in the tensile region so that the sample may receive no compression force or the like. As a result, the vibration can be applied in the tensile state at all times.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12201279A JPS5646443A (en) | 1979-09-25 | 1979-09-25 | Fatigue preventing system for viscoelastic sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12201279A JPS5646443A (en) | 1979-09-25 | 1979-09-25 | Fatigue preventing system for viscoelastic sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5646443A true JPS5646443A (en) | 1981-04-27 |
Family
ID=14825377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12201279A Pending JPS5646443A (en) | 1979-09-25 | 1979-09-25 | Fatigue preventing system for viscoelastic sample |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5646443A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975704A (en) * | 2010-10-08 | 2011-02-16 | 中国船舶重工集团公司第七二五研究所 | Method for predicting vibration fatigue performance of viscoelastic material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156835A (en) * | 1979-05-24 | 1980-12-06 | Iwamoto Seisakusho:Kk | Measuring device for viscoelasticity |
-
1979
- 1979-09-25 JP JP12201279A patent/JPS5646443A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156835A (en) * | 1979-05-24 | 1980-12-06 | Iwamoto Seisakusho:Kk | Measuring device for viscoelasticity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975704A (en) * | 2010-10-08 | 2011-02-16 | 中国船舶重工集团公司第七二五研究所 | Method for predicting vibration fatigue performance of viscoelastic material |
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