| Autor: |
M. A. Lepore, M. Perrella |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Frattura ed Integrità Strutturale, Vol 11, Iss 39, Pp 191-201 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1971-8993 |
| DOI: |
10.3221/IGF-ESIS.39.19 |
| Popis: |
A straightforward methodology for modelling the cohesive zone (CZM) of an adhesively bonded joint is developed, by using a commercial finite element code and experimental outcomes from standard fracture tests, without defining a damage law explicitly. The in-house developed algorithm implements a linear interpolated cohesive relationship, obtained from literature data, and calculates the damage at each step increment. The algorithm is applicable both to dominant mode I or dominant mode II debonding simulations. The hypothesis of unloading stages occurrence is also considered employing an irreversible behaviour with elastic damaged reloading. A case study for validation is presented, implementing the algorithm in the commercial finite element method (FEM) software Abaqus®. Numerical simulation of dominant mode I fracture loading provides with satisfactory results. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
