A design application of cored polystyrene composite material to naval construction
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Inclou dades d'ús des de 2022
Cita com:
hdl:2117/332353
Tipus de documentText en actes de congrés
Data publicació2015
EditorCIMNE
Condicions d'accésAccés obert
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Abstract
This paper presents a study of the distribution of stresses and strains acting on a
prismatic ferry that makes use of an idealized composite [1] to naval employment. The
structural arrangement of the ferry is minimized in order to achieve the limit of the minimum
dimensions and thicknesses able to resist deformation and maximum stresses. This minimum structural
arrangement was chosen in order to study the limits of the recently developed
material. Calculation of stresses and strains on the vessel is conducted with the aid
of a software-based on Finite Element [2] and [3] method. In order to proceed to the stresses and
strains calculations the ferry was subjected to different loading conditions: one of hogging and
another of sagging, assuming the same load capacity in both situations. The basic structural
arrangement adopted in a base composite element is formed by two faces and an expanded polystyrene
core. Equally spaced shear webs connect both laminated faces. These
reinforcements and both faces are laminated with fiber glass impregnated with epoxy resin. In
defining the minimum dimensions of the elements a rule of thumb [4] is used in order to start to
search for the modeling of the minimum geometry and generate the results. Results of
stress distribution and deformation of the hull structure are presented. It is also computed the
total weight of the structure in order to compare with another structural weight. So,
these same dimensions previously defined for the ferry are also used to define a structure based in
a core of Divinycell® to compare the total structural weight. At last, it is concluded that the
present structure [1] has a weight consistent with the lower density Divinycell, but
with a much lower price than the composite structure cored with Divynicell®.
CitacióCarbé Ribeiro, H.J.; De Macêdo Wahrhaftig, A.; Nogueira Nascimento, A. A design application of cored polystyrene composite material to naval construction. A: MARINE VI. "MARINE VI : proceedings of the VI International Conference on Computational Methods in Marine Engineering". CIMNE, 2015, p. 480-489. ISBN 978-84-943928-6-3.
ISBN978-84-943928-6-3
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Marine-2015-38_A DESIGN APPLICATION OF CORED.pdf | 477,2Kb | Visualitza/Obre |