2011 Fiscal Year Final Research Report
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
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Wood science
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| Research Institution | Shimane University |
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Principal Investigator |
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| 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)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 破壊力学特性値 / 評価法 |
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| 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.
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