Development of 3-D Dynamic Fracture Process Analysis (DFPA) code for rock-lime materials
| Project/Area Number |
25870013
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Earth system and resources engineering
Geotechnical engineering
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
FUKUDA Daisuke 北海道大学, 工学(系)研究科(研究院), 助教 (80647181)
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | 岩質材料 / 複雑亀裂進展 / 高速破砕 / 3次元破壊プロセス解析 / DFPA / 有限要素法(FEM) / 動的破壊力学 / 数値破壊プロセス解析 / 3次元有限要素法 / 数値破壊解析 / 亀裂進展 / 高速破砕制御 / 発破 / 接触処理 / 高速制御破砕 / 3次元リメッシュ / X線CT |
|---|
| Outline of Final Research Achievements |
In this research, a state-of-the-art "3-D Dynamic Fracture Process Analysis (DFPA)" code was developed based on the finite element method. By utilizing the inter-element cracking method and cohesive fracture model, the 3-D DFPA can simulate the complex initiation, growth, branching and coalescence of multiple cracks with the consideration of rock heterogeneity. The 3-D DFPA can be applied to various dynamic fracturing problems for rock-like materials. Therefore, the outcome of this research, i.e. the developed 3-D DFPA code, can contribute to the understanding of the mechanisms of dynamic fracturing in rock-like materials, which have not been understood well. In addition, since the 3-D DFPA can realistically simulate the fracturing process contrary to the previous researches using pure continuum mechanics-based approach, it can be used for finding the optimum design of the various fast breaking methods which apply rapid loading to the rock-like materials.
|
Report
(4 results)
Research Products
(29 results)
-
-
-
-
-
[Journal Article] Dynamic Fracture Process Analysis in Rock-like Materials for Axisymmetric Problem, H.M. Kim, D. Fukuda, J. Ikezawa, K. Moriya, S.H. Cho and K. Kaneko2013
Author(s)
H.M. Kim, D. Fukuda, J. Ikezawa, K. Moriya, S.H. Cho, K. Kaneko
-
Journal Title
Science and Technology of Energetic Materials
Volume: 74
Pages: 74-81
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
