Author(s): W. Boruszewski, M. Kataoka-Filho & L.E. Barbosa
Composite sandwich panel stiffness as a function of fibre orientation layout of
face sheet is examined keeping total mass constant.
Two basic layouts are con-
sidered: the first using constant fibre orientation and the second having a dif-
ferent fibre angle for each panel quarter.
Specimens are tested showing good
agreement with the first natural frequencies calculated for their finite element
Taking fibre angles as design variables both layouts are maximized for
the first eigenvalue.
Two subsequent partitions are modeled with important
stiffness increases achieved.
The use of sandwich structures has been increasing in recent years as a result of
their light weight and high stiffness.
They have been used in a variety of appli-
cations such as...
Size: 488 kb
Paper DOI: 10.2495/CP960191
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