Application of XFEM using only Heaviside step function to nonlinear structural analyses
Project/Area Number |
15K04761
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Computational science
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Research Institution | Sophia University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
末益 博志 上智大学, 理工学部, 教授 (20134661)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
Keywords | 計算力学 / 拡張有限要素法 / き裂進展解析 / 弾塑性解析 / 損傷進展解析 / 結合力モデル / き裂 / 非線形有限要素法 |
Outline of Final Research Achievements |
The extended finite element method (XFEM) using only Heaviside step function to model discontinuity of displacement field was applied to nonlinear structural analyses. Both three-dimensional 8-node hexahedral and 6-node pentahedral solid finite elements enriched with only Heaviside step function were formulated and the proposed method was implemented to the analysis software. The method was validated through elastic plastic analyses of a cracked metallic plate under uniform tensile load and damage propagation analyses of a CFRP specimen with an open hole under tension load.
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Report
(4 results)
Research Products
(46 results)
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[Presentation] Benchmark Analysis for Ductile Fracture Simulation-Description of Problems and Comparison of Results-2016
Author(s)
Miura, N., Kumagai, T., Kikuchi, M., Takahashi, A., Kim, Y. J., Nagashima, T., Wada Y.
Organizer
WCCM XII & APCOM VI
Place of Presentation
COEX (Seoul, Korea)
Year and Date
2016-07-25
Related Report
Int'l Joint Research
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[Presentation] Evaluation of Ductile Crack Propagation Behavior for Subsurface Cracks in Cladded Plates Using XFEM2016
Author(s)
Nagai, M. , Murai, K,, Nagashima, T, Miura, N.
Organizer
ASME/PVP2016
Place of Presentation
Hyatt Regency Vancouver (Vancouver, BC, Canada)
Year and Date
2016-07-24
Related Report
Int'l Joint Research
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