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Details van artikel 46 van 110 gevonden artikelen
| Titel: |
Finite element modelling of anthropomorphic test devices for vehicle crashworthiness evaluation |
| Auteur: |
Ennis, Jason B. Marzougui, Dhafer Eskandarian, Azim Bedewi, Nabih E. |
| Verschenen in: |
International journal of crashworthiness |
| Paginering: | Jaargang 6 (2001) nr. 4 pagina's 511-524 |
| Jaar: |
2001 |
| Inhoud: |
This research focuses on the development and implementation of a methodology for creating highly accurate occupant finite element models. This study concentrates on a 50th Percentile Anthropomorphic crash Test Dummy (ATD) Finite Element (FE) model with application in vehicle crashworthiness evaluation. An extensive review of currently available FEM models of the Hybrid Ill 50th percentile dummy revealed the need for a more extensive model of ATD's. Currently available models contain upwards of 20,000 elements but do not include each component's full geometry. This research has spawned a model that is composed of 45.000 elements, and includes all parts of an actual Hybrid 111 ATD in acute detail. A method for creating dummy finite element models is presented. This methodology is based on the premise that the model must be based on the fundamentals of mechanics, focusing directly on component geometry and material mechanical properties. Furthermore, the model should be created and validated at the component level and then integrated and re-evaluated at a system level to ensure accuracy. All parts of an existing Hybrid III ATD are incorporated in their original manufacturer intended form and function. This paper will focus on the method, which has been developed and employed to create a Hybrid III ATD finite element model. Discussion of the relevant issues and pitfalls in modeling an occupant for use in impact simulation will be highlighted. This modeling was done with several fundamentals in mind: First the resulting FEM must accurately represent an actual ATD in mass, inertia, and material properties. Secondly, special attention must be paid to the need for this model to be integrated into existing and future models of vehicle occupant compartments. Finally, the methodology must be logical and easy to follow in order to reduce error in implementation. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 46 van 110 gevonden artikelen
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