Abstract
Short fiber-reinforced composites (SFRP) are being expanded for use as a material with high specific strength and specific
stiffness, and SFRP has good moldability by injection molding. However, the strength and other properties decrease depending on
the molding conditions, it is necessary to set optimal molding conditions. Experimental evaluations have been conducted using
various shapes, such as flat plates and T-shaped molds, but analytical evaluations are also necessary from an economic and time
perspective. In this study, the MPS (Moving Particle Semi-implicit) method was applied to a T-shape mold because of its ability
to track the behavior of fibers and resin. As a result, the analysis confirmed the accelerated resin and the resin accelerating after
deceleration that was observed in the experiment. In the rib part, it was confirmed that the resin temperature in the center was lower
due to the shift of the cooled resin in the plate part. In addition, most of the fibers in the rib part were oriented in the direction of
flow due to the acceleration that occurred during the flow into the rib part, but some fibers were found were oriented perpendicular
to the flow direction.
