Examination of the source of differences among the fracture mechanics properties of wood and wood-based materials obtained by different methods and establishment of the novel characterization methods
| Project/Area Number |
21580207
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Wood science
|
|---|
| Research Institution | Shimane University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
OHTA Masamitsu 東京大学, 大学院・農学生命科学研究科, 教授 (20126006)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
|---|
| Keywords | 破壊力学特性値 / 評価法 / 破壊力学 / 特性評価法 / 木材 / 中密度繊維板 / ENF試験 / 非対称4点曲げ試験 / DCB試験 / SENB試験 / CT試験 / SENT試験 / テーパ付試験体 / 開口モード |
|---|
| Research Abstract |
Although the fracture mechanics properties of wood and wood-based materials are essentially the material parameters as well as the elastic properties and strengths, it has been suggested that they are often dependent on the measurement methods and specimen configurations. This dependence is though to be because of the ignorance of nonlinear behaviors ahead of the crack tip. In this study, several methods for characterizing the fracture mechanics properties of wood and wood-based materials were proposed while considering the nonlinear behaviors induced at the crack tip. In addition, the methods proposed in this study were also effective for predicting the strength properties of a crack-free specimen as well as those of the specimen with a crack.
|
Report
(4 results)
Research Products
(13 results)
