2016 Fiscal Year Final Research Report
Test plan for 15 years creep test of polymeric materials
| Project/Area Number |
26820013
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Materials/Mechanics of materials
|
|---|
| Research Institution | Saitama University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | 粘弾性力学 / クリープ試験 / 時間－温度換算則 / 高分子材料 |
|---|
| Outline of Final Research Achievements |
Long-term creep tests for over one year were carried out using Polypropylene. Moreover, short-term creep tests, constant strain rate tests and constant loading rate tests were carried out at various temperature. Creep compliance was calculated by using these short-term tests data, and to get master curves of creep compliance, the time-temperature superposition principle was applied to these data. Master curve of the short-term creep tests data were coincide with the long-term creep tests, and it was clear that the W.L.F. equation was suit on the polypropylene. On the results of the master curves from constant strain-rate and loading-rate tests, they were not coincide with the long-term creep tests. It was cleared that the reason of disagreement was the non-linear viscoelastic behavior of polypropylene.
|
| Free Research Field |
粘弾性力学
|
