Seyfarth J.,E Xstream engineering L Sarl |
Assaker R.,E Xstream engineering L Sarl
International SAMPE Technical Conference | Year: 2013
The production of composite parts relies on an ever increasing number of processing technologies. The step of production has a large impact on the performance of the part. Processing is usually optimized for the usage with specific materials. Commonly used technologies are injection molding, injection-compression molding, compression molding, fiber draping or placement. Also innovative technologies such as MuCell® start to enter the scene. For the latter the advantages of even lighter parts are sought by introducing a foam structure in the polymer. All of these approaches are applied in combination with short, long and continuous fiber reinforced plastics. To reach the best possible design for some specific performance of the composite part under a given constraint such as e.g. the overall weight, it is important to go through optimization cycles for the processing step, the structural design and even of the material itself. The final performance of the part will depend on all three of them at the same time. Today it is possible to set up multi-scale simulations where all three influences are fully coupled and thus can be investigated in one unique approach. This paper deals with the role of micromechanics in such coupled analyses. All mentioned processing technologies and materials are covered. Stiffness, failure and fatigue of reinforced plastics are discussed in the context of the specific composite material used in the respective manufacturing methods. Copyright 2013 by Aurora Flight Sciences.