S. Kodiyalam et al., PLY LAYUP OPTIMIZATION AND MICROMECHANICS TAILORING OF COMPOSITE AIRCRAFT ENGINE STRUCTURES, Journal of propulsion and power, 10(6), 1994, pp. 897-905
A ply layup optimization and micromechanics tailoring capability for c
omposites aircraft engine components is under development. The composi
tes optimization methodology is multidisciplinary, encompassing struct
ural, heat transfer, and aeromechanical design considerations. The met
hodology includes provision for handling multiple objective functions
and a framework for approximation of both the response functions and i
ts derivatives. Derivative approximations are found to be sufficiently
accurate to guide the numerical search in the right direction. A micr
omechanics tailoring procedure to correlate the ''calculated'' and ''m
easured'' lamina properties at elevated temperatures is outlined. The
micromechanics tailoring also provides the ability to back out effecti
ve (in situ) matrix properties as part of the composite. Several real
life aircraft engine components are optimized for structural, thermal,
and aeromechanical responses as design objectives and constraints.