6533b85efe1ef96bd12bf4c2
RESEARCH PRODUCT
Layer thickness optimisation in a laminated composite
A. PastaS. LuparelloP. Contisubject
Safety factorMaterials scienceOrientation (computer vision)business.industryMechanical EngineeringProcess (computing)StiffnessFunction (mathematics)Structural engineeringIndustrial and Manufacturing EngineeringFinite element methodSet (abstract data type)Mechanics of MaterialsSimple (abstract algebra)Ceramics and Compositesmedicinemedicine.symptombusinessdescription
Abstract The paper describes a method to optimise the thickness balance within a composite laminate with layers oriented according to a limited set of angles. The laminate must be symmetric, balanced and loaded in-plane. The optimisation process is particularly suited to be used in conjunction with a finite element program. It provides the designer with the optimal overall engineering characteristics anda list of all the possible orientation combinations ranked with respect to their safety factor. The optimisation method is based on the first order gradient optimum search method and operates iteratively in the engineering elastic characteristics field. The cost function implemented up to now is the structure stiffness but no conceptual limitations exist for different functions. Some simple applications are listed at the end of the paper in order to verify the capabilities of the method.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-01-01 |