Composite Materials Research Progress

Optimization of Laminated Composite Structures… 101
stiffness, buckling and strength based designs. It is routinely used in an (European) industrial
context for the design of composite aircraft box structures located in the wings, the center
wing box, and the vertical and horizontal tail plane. This approach is based on sequential
convex programming and consists in replacing the original optimization problem by a
sequence of approximated sub-problems. A very general and self adaptive approximation
scheme is used. It can consider the particular structure of the mechanical responses of
composites, which can be of a different nature when both fiber orientations and plies
thickness are design variables.
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