Abstract
In this paper the dynamic simulation of a new Fast Attack
Craft subjected to underwater explosion (UNDEX) is
discussed. Field response results of a global model
containing the whole structure are presented. The
surrounding water enabling the cavitation phenomenon was
included into the model as acoustic domain. In addition,
the effects of gravity and buoyancy were included into
the analysis. As excitations to the model shockwave and
free surface reflections were used. Filtering was used to
control the frequency content of charge detonation
excitations.The Fast Attack Craft hull is constructed of
aluminum alloy. Nonlinear Ramberg-Osgood plasticity model
and Cowper-Symonds power law model for strain rate
effects and failure conditions were included into the
material model. Analyses were carried out by using Abaqus
finite element code in a multi-processor Linux computer.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 77th Shock and Vibration Symposium |
| Place of Publication | USA |
| Publication status | Published - 2006 |
| MoE publication type | B3 Non-refereed article in conference proceedings |
| Event | 77th Shock & Vibration Symposium - Monterey, CA, United States Duration: 29 Oct 2006 → 2 Nov 2006 |
Conference
| Conference | 77th Shock & Vibration Symposium |
|---|---|
| Country | United States |
| City | Monterey, CA |
| Period | 29/10/06 → 2/11/06 |
Keywords
- UNDEX
- shock response
- Abaqus
- underwater explosion
- cavitation
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Cite this
Virtanen, J., & Juntunen, M. (2006). Dynamic simulation of fast attack craft subjected to Underwater Explosion (UNDEX). In Proceedings of the 77th Shock and Vibration Symposium