Optimization of Automotive Composite Structures

Composites in automotive structures show great promise; composites have been shown to be lightweight, more robust and have superior crash performance. The high specific strength and stiffness of advanced composites may have a significant influence on the overall weight reduction in automotive structures. Until now limited research has been done on optimal design of composite structures for crash. The large differences in material properties and failure behavior between metals and composites may however require a significant redesign of vehicle architectures. Replacing components in existing architectures with composite parts does not use the full potential of advanced composites. Commonly used steel, aluminum and other isotropic materials have already been extensively researched with respect to their material properties, static and dynamic behavior and simulation. By contrast, there are no complete and well established material databases for fiber reinforced plastic (FRP) composite materials, which support reliable and validated simulation. However, simulation of FRP in an optimization work flow is possible when the limitations and possibilities of current analysis tools are carefully assessed and considered. Novel methods in optimization strategy are needed to integrate advanced composite materials in automotive design.     «

Composites in automotive structures show great promise; composites have been shown to be lightweight, more robust and have superior crash performance. The high specific strength and stiffness of advanced composites may have a significant influence on the overall weight reduction in automotive structures. Until now limited research has been done on optimal design of composite structures for crash. The large differences in material properties and failure behavior between metals and composites ma...     »