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http://dx.doi.org/10.3744/SNAK.2011.48.6.552

Comparisons of Multi Material ALE and Single Material ALE in LS-DYNA for Estimation of Acceleration Response of Free-fall Lifeboat  

Bae, Dong-Myung (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University)
Zakki, Ahmad Fauzan (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.48, no.6, 2011 , pp. 552-559 More about this Journal
Abstract
An interest in Arbitrary Lagrangian Eulerian (ALE) finite element methods has been increased due to more accurate responses in Fluid-Structure Interaction(FSI) problems. The multi-material ALE approach was applied to the prediction of the acceleration response of free-fall lifeboat, and its responses were compared to those of the single-material ALE one. It could be found that even though there was no big difference in the simulation responses of two methods, the single-material and multi-material ALE ones, the latter multi-material ALE method showed a little bit more close response to those of experimental results compared to the former single-material ALE one, especially in the x- and z-direction acceleration responses. Through this study, it could be found that several parameters in the ALE algorithms have to be examined more carefully for a good structural safety assessment of FSI problems.
Keywords
Free-fall lifeboat; Acceleration response; Multi material ALE; Single material ALE;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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