| Autor: |
C. Madrigal, V. Chaves, A. Navarro |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Frattura ed Integrità Strutturale, Vol 8, Iss 30, Pp 153-161 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
1971-8993 |
| DOI: |
10.3221/IGF-ESIS.30.20 |
| Popis: |
Very often computations on structural elements or machine components subjected to variable loading require using an advanced finite element model. This paper reports the numerical implementation of a model for multiaxial cyclic elasticplastic behaviour developed to extend the tools of the local deformation method under fatigue to multiaxial conditions. A basic computer code for axialtorsional loads was developed with the commercial software Matlab and a more sophisticated code based on the finite element model for general multiaxial loads was developed as a UMAT subroutine in Abaqus. Stress integration was introduced in the two usual forms: implicitly and explicitly. A comparison of the results obtained with the implicit and explicit formulations revealed that, under certain loading conditions, the outcome of the process depends on the particular integration scheme used. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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