An analytic model for the water blast response of one-dimensional marine structure coated with elastic foam
Autor: | Yu Wang, Yong Chen, Hong Xing Hua |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | Archive of Applied Mechanics. 80:1243-1253 |
ISSN: | 1432-0681 0939-1533 |
DOI: | 10.1007/s00419-009-0367-1 |
Popis: | The water blast response of one-dimensional marine structures coated with elastic foam is theoretically investigated. The foam coating is modeled by a group of concentrated masses separated by parallel massless nonlinear spring and damper, simulating the micro inertia, stiffness, and rate-dependent effects exhibited by common cellular materials. An analytic model for the wet face response, inclusive of fluid-structure interaction, is developed. The model addresses cavitation and takes into account the momentum of reconstituted water attached to the wet face. The first-order double asymptotic approximation method is used to compute the pressure during the spring-back and succeeding phase. The fidelity of the analytic model has been assessed by the finite element analysis. |
Databáze: | OpenAIRE |
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