Integrative crash simulation of short- fiber-reinforced thermoplastics (SFRT): Investigation of phenomenologically based material modeling

摘要

Both the interior and exterior parts of modern vehicles must fulfil several requirements. They should be light and robust whilst guaranteeing passenger and pedestrian safety. Fiber-reinforced thermoplastics are used increasingly to fill this role. They can be produced easily with mold injection, they have few restrictions on geometry and they are usually stronger and stiffer than unreinforced polymers. However, their superior material properties are highly dependent on the local fiber distribution and the markedness of anisotropy can vary within a part. Structural FE analyses must account for the local anisotropy direction and degree, which is a result of the mold-injection process.