A new analytical calculation method for the injectionmolding process of a composite luggage rack holder

This article presents a new anisotropic analysitical method for thermoplastic composite materials. This method considers the effect of fiber orientation on the mechanical properties of composites and concludes with variouslastic modulus values of material in complicated part geometries. At the beginning of the paper, a new composite luggage rack holder is designed according to the plastic injection-molding design criteria to replace the previous metal luggage rack holder. Afterwards, Moldflow simulations and analyses are carried out, with the results of analysis including fiber orientation data. Next, fiber orientation input is mapped using Helius software. Mapped data containing anisotropic structure information with various elastic modulis are imported into ABAQUS structural software and analysis carried out. The study concludes that with this newly developed method, anisotropic structures with various elastic modulus values are mapped into finite element analysis software successfully and anisotropic analysis gives a more realistic estimate of strength and deformation results than does isotropic analysis.295