Practical realization of fatigue crack propagation simulations using the extended finite element method(X-FEM)
Project/Area Number |
21560070
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Engineering fundamentals
|
Research Institution | Sophia University |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
SUEMASU Hiroshi 上智大学, 理工学部, 教授 (20134661)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
Keywords | 計算力学 / 拡張有限要素法 / 疲労き裂進展 / き裂 / はく離 / 応力拡大係数 / 領域積分法 / レベルセット法 / 有限要素法 / パリス則 |
Research Abstract |
Stress analysis codes based on the formulation of the extended finite element method(XFEM) have been developed. In the codes, solid and shell elements utilized in conventional finite element analyses are enriched through the Heaviside step function and the asymptotic basis functions, and consequently the crack geometry can be modeled independently of the finite elements. Moreover, crack propagation analyses can be performed easily by controlling execution of the developed XFEM codes. The codes were applied to crack and fatigue crack propagation analyses of metal and composite structures, and appropriate results were obtained.
|
Report
(4 results)
Research Products
(18 results)
-
-
-
-
-
-
-
-
[Presentation]2010
Author(s)
川本裕貴
Organizer
第23回計算力学講演会
Place of Presentation
北見市,北海道
Year and Date
2010-09-25
Related Report
-
-
-
-
-
-
-
-
-
-