2011 Fiscal Year Final Research Report
Practical realization of fatigue crack propagation simulations using the extended finite element method(X-FEM)
| Project/Area Number |
21560070
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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 |
Engineering fundamentals
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| Research Institution | Sophia University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SUEMASU Hiroshi 上智大学, 理工学部, 教授 (20134661)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 計算力学 |
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| 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.
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