FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite Models
The graphite is porous medium, and the geometry and size distribution of its structural deficiencies such as microcracks and microvoids at different oxidation degrees have a great influence on the overall performance. In this paper, we adopt the FM-DBEM to study 3D models which contain spheroidal mi...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2017/1071709 |
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| _version_ | 1849403909067505664 |
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| author | Houdi Lu Hongtao Wang Haitao Wang Lie Jin Xinxin Wu Yu Zhou |
| author_facet | Houdi Lu Hongtao Wang Haitao Wang Lie Jin Xinxin Wu Yu Zhou |
| author_sort | Houdi Lu |
| collection | DOAJ |
| description | The graphite is porous medium, and the geometry and size distribution of its structural deficiencies such as microcracks and microvoids at different oxidation degrees have a great influence on the overall performance. In this paper, we adopt the FM-DBEM to study 3D models which contain spheroidal microvoids and circular microcracks. The accuracy of this method is tested by a comparison to the theoretical solution to the problem of 2D microcrack and microvoid interaction problem. Two simulations are conducted: the simulation of graphite model containing a large number of randomly distributed microcracks and microvoids and the simulation of graphite model containing microcracks and growing microvoids. The simulations investigate the effective moduli versus the two microstructures’ density and the effect of microvoid’s growth on the SIF of microcrack. |
| format | Article |
| id | doaj-art-921eb47709c044bdafdf557c7bfa48af |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-921eb47709c044bdafdf557c7bfa48af2025-08-20T03:37:08ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832017-01-01201710.1155/2017/10717091071709FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite ModelsHoudi Lu0Hongtao Wang1Haitao Wang2Lie Jin3Xinxin Wu4Yu Zhou5Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaKey Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaKey Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaKey Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaKey Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaKey Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaThe graphite is porous medium, and the geometry and size distribution of its structural deficiencies such as microcracks and microvoids at different oxidation degrees have a great influence on the overall performance. In this paper, we adopt the FM-DBEM to study 3D models which contain spheroidal microvoids and circular microcracks. The accuracy of this method is tested by a comparison to the theoretical solution to the problem of 2D microcrack and microvoid interaction problem. Two simulations are conducted: the simulation of graphite model containing a large number of randomly distributed microcracks and microvoids and the simulation of graphite model containing microcracks and growing microvoids. The simulations investigate the effective moduli versus the two microstructures’ density and the effect of microvoid’s growth on the SIF of microcrack.http://dx.doi.org/10.1155/2017/1071709 |
| spellingShingle | Houdi Lu Hongtao Wang Haitao Wang Lie Jin Xinxin Wu Yu Zhou FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite Models Science and Technology of Nuclear Installations |
| title | FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite Models |
| title_full | FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite Models |
| title_fullStr | FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite Models |
| title_full_unstemmed | FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite Models |
| title_short | FM-DBEM Simulation of 3D Microvoid and Microcrack Graphite Models |
| title_sort | fm dbem simulation of 3d microvoid and microcrack graphite models |
| url | http://dx.doi.org/10.1155/2017/1071709 |
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