| Autor: |
A.N. Levandovskiy, B.E. Melnikov, A.A. Shamkin |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Инженерно-строительный журнал, Vol 69, Iss 1, Pp 3-22 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2071-0305 |
| DOI: |
10.18720/MCE.69.1 |
| Popis: |
Wide use of various porous materials in construction engineering applications requires development of up to date methods of non-destructive characterization and optimization of such materials. This work explores an approach to modeling of fracture of a brittle porous material. Available 3D digital data on the specimen geometry is converted into uniform finite element mesh consisting purely of elements of cubic shape. Fracture model is based on a series of linear solutions. Thus approach to linear modeling described in the previous papers could be utilized. Fracture is modeled by consecutive element erosion. A special element erosion criterion is established to avoid finite element size dependency. Two speed-up algorithms are proposed and tested. The approach described can be used for modeling fracture of uniform construction materials, also materials with inclusions under various mechanical and thermal loads. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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