| Autor: |
P. Livieri, R.Tovo, E. Benvenuti |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Předmět: |
|
| Zdroj: |
Frattura ed Integrità Strutturale, Vol 5, Iss 17, Pp 23-31 (2011) |
| Druh dokumentu: |
article |
| ISSN: |
1971-8993 |
| Popis: |
A criterion for the prediction of the static failure loads in tensile PMMA specimens with sharp notches is presented. The proposed criterion is based on a regularized version of the eXtended Finite Element Method (XFEM), which has been previously applied to concrete-like materials. The main feature of the proposed approach is that the cracking process is not treated as a local process, but it is modeled by assuming that macro-cracks stem from the interaction of micro-cracks within a finite width process zone. The case of a brittle materials with thin process zone is tackled by assuming one layer of enriched finite elements. Preliminary results concerning PMMA specimens subjected to mode-one loading are presented. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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